Physics

Physics Questions & Answers A 110 g hockey puck slides across the frictionless surface of an ice rink at 2.2 m/s. It collides with a 420 g water bottle at rest on the ice. The water bottle slides off at 0.84 m/s in the direction of the puck's original velocity. What is the puck's final velocity...

Physics Equations Questions & Answers (current)² x resistance - CORRECT ANSWER- power 0.5 x mass x (speed)² - CORRECT ANSWER- kinetic energy change in velocity/time taken - CORRECT ANSWER- acceleration charge flow x potential difference - CORRECT ANSWER- energy transferred current x resistanc...

Physics Questions & Answers - CORRECT ANSWER- frequency does not change between mediums helium is a lie aberration - CORRECT ANSWER- spherical aberration: assumption of sin(theta) = theta light at top of lens is refracted more, shorter focal length so not all rays go through focal length, inhe...

Physics Questions & Answers Acceleration is half - CORRECT ANSWER- If mass is doubled, what happens to acceleration? Acceleration must be doubled - CORRECT ANSWER- If force is doubled, what happens to acceleration? apparent weight decreases - CORRECT ANSWER- What happens to apparent weight when ...

Physics Questions & Answers A ball is rolling down one hill and up another as shown. Points A and B are at the same height. How do the velocity and acceleration change as the ball rolls from point A to point B? - CORRECT ANSWER- The horizontal component of the velocity is the same at points A and...

Physics Questions & Answers a 2 Kg ball is thrown at 3m/s. what is the balls momentum? - CORRECT ANSWER- 6 kg x m/s a 4.0 kg ball has momentum of 20.0 kg x m/s. what is the balls speed? - CORRECT ANSWER5.0 m/s a ball is moving at 6.0 m/s and has a momentum of 24.0 kg x m/s. what is the balls mass...

Physics Final Questions & Answers A constant net torque is applied to a rotating object. Which of the following best describes the object's motion? 10 - CORRECT ANSWER- The object will rotate with constant angular acceleration. A cylindrical rod has equal and opposite forces applied parallel to...

Physics Equations Questions & Answers Acceleration (m/s2) - CORRECT ANSWER- = change in velocity (m/s)/time (s) Charge flow (C) - CORRECT ANSWER- = current (A) x time (s) Density (kg/m3) - CORRECT ANSWER- = mass (kg) / volume (m3) Distance Travelled (m) - CORRECT ANSWER- = speed (m/s) x time (s)...

Physics GCSE Questions & Answers Changes of State - CORRECT ANSWER- Boiling: occurs at a definite temperature called the boiling point. Bubbles/vapour form in the liquid and rise. Condensation: occurs when gas or vapour molecules return to liquid state. Melting: takes place at a definite tempera...

Physics Questions & Answers Convection - CORRECT ANSWER- the transfer of heat in a cycle within fluids only current - CORRECT ANSWER- the flow of the rate of electrons electric insulator - CORRECT ANSWER- a material in which electrons cannot easily move electrical conductor - CORRECT ANSWER- a m...

Physics 181, Questions & Answers 1. Which one of the following statements best explains why tiny bits of paper are attracted to a charged rubber rod? - C) The paper becomes electrically polarized by induction. 2. Five styrofoam balls are suspended from insulating threads. Several experiments are ...

Physics 1 Questions & Answers A bouquet has 30 flowers. The size of the bouquet is decreased by a factor of 3. How many flowers remain? A. 27 B. 0 C. 10 D. 15 - CORRECT ANSWER- C A force is applied to a surface. If the force is tripled and the surface area over which the force is applied is ...

Physics Questions & Answers A lightweight material is being tested for effectiveness in blocking ultraviolet (UV) rays from the sun that cause skin to burn and possibly develop skin cancer. Which method would be most helpful for testing this material? - CORRECT ANSWER- Test the material in contro...

Physics Final Questions & Answers A ball of mass "m" and momentum "p" has kinetic energy equal to which of the following: 1/2 (p²/m) , p²/m , 2 (p²/m) , 1/2 (m/p²) , 2 (m/p²) - CORRECT ANSWER- 1/2 (p²/m) -1/2mv² and 1/2pv and 1/2p²/m A person throws a marble straight up into the ...

Physics Questions & Answers A 10-kg brick and a 1-kg book are dropped in a vacuum. The force of gravity on the 10-kg brick is - CORRECT ANSWER- 10 times as much as the force on the 1-kg book. A 100-N lantern is suspended by a pair of ropes with 120 degrees between them. The tension in each rope ...

Physics Final Questions & Answers A 0.500-kilogram cart traveling to the right on a horizontal, frictionless surface at 2.20 meters per second collides head on with a 0.800-kilogram cart moving to the left at 1.10 meters per second. What is the magnitude of the total momentum of the two-cart s...

Physics Questions & Answers "Hang time" is the time a jumper's feet are off the ground in a vertical jump. If a person jumped straight up and measured his/her hang time, then runs horizontally and jumps with the same vertical component of takeoff velocity, the hang time will be - CORRECT ANSWE...

Physics Questions & Answers - [ ] A student must design an experiment to determine the acceleration of a cart that rolls down a small incline after it is released from rest. The student has access to a timer, a meterstick, and a slow-motion camera that takes a photograph every 1/60 of a second. ...

Quantum Physics Questions & Answers Absorption and Emission spectrum - CORRECT ANSWER- The spectrum of light absorbed or emitted by an element. For example, passing white light through hydrogen gas results in particular frequencies/photons being absorbed. These same frequencies/photons are later ...

Physics Questions & Answers A +15-nC point charge is placed on the x axis at x = 1.5 m, and a -20-nC charge is placed on the y axis at y = -2.0m. What is the magnitude of the electric field at the origin? - CORRECT ANSWER- 75 A +2.0-nC point charge is placed at one corner of a square (1.5 m on a...

Physics Questions & Answers A boat moving at 4m/s north, with a wind coming from the east at 3 m/s gives you a net vector of what? - CORRECT ANSWER- 5m/s NE acceleration - CORRECT ANSWER- Change in velocity over change in time Acceleration - CORRECT ANSWER- The rate of change in velocity. Can be...

Conceptual Physics Questions & Answers A 1000 kg car moving at 10 m/s brakes to a stop in 5 s. The average braking force is - CORRECT ANSWER- 2000 N A 2 kg mass has 40 J of PE with respect to the ground. Approximately how high is it above the ground? - CORRECT ANSWER- 2 m A 4 kg ball has a mome...

Physics Questions & Answers Acceleration - CORRECT ANSWER- The rate at which the velocity of an object is changing. Acceleration of an object may be a change in direction or a change in speed (slowing down or speeding up). Applied Force - CORRECT ANSWER- A push or pull on an object. Average Spe...

Physics Questions & Answers A boy throws a rock with an initial velocity of 3.13 m/s at 30.0* above the horizontal. How long does it take for the rock to reach the maximum height of its trajectory if air resistance is negligibly small and g=9.8 m/s^2 A) 0.160 s B) 0.282 s C) 0.313 s D) 0.441 ...

Physics AP Questions & Answers A ball is dropped onto the floor and bounces upward. Which of the following claims are correct about the force that the ball exerts on the floor compared to the force that the floor exerts on the ball when the ball and the floor are in contact? - CORRECT ANSWER- The...

Physics- Nuclear and Modern Physics Test Questions & Answers _______ is the term for the measurement 10-9 m. - CORRECT ANSWER- nanometer 1 2 3 4 5 6 7 8 9 10 Chemotherapy is a cancer treatment that uses drugs to kill cancer cells. However, it is problematic, because the drugs also kill every he...

Physics Questions & Answers CHAPTER 4 1) A man is stranded on a raft (mass of man + raft = 1300 kg). By paddling he causes an average force P of 17 N in east direction. The wind also exert a force A on the raft whose magnitude is 15 N and points 67 degrees north of east. Ignoring any resistance ...

Physics Questions & Answers (B) Both cars have the same acceleration and (C) The cars meet at time t=10s - CORRECT ANSWER- The figure shows a graph of the position x of two cars, C and D, as a function of time t 0.0-5.0s - CORRECT ANSWER- According to the graph above, during which interval does ...

Physics Questions & Answers 1. The property of an object at rest to remain at rest is known as A. inertness. B. inertia. C. resistance. D. sluggishness. - CORRECT ANSWER- B 10. A small block sits on a horizontal table. In one experiment, a student pushes with a horizontal force of 5 N, but th...

Ultrasound Physics Questions & Answers 10 dB change - CORRECT ANSWER- means that the final intensity will be 10 times bigger than the original 13 microsecond rule - CORRECT ANSWER- in soft tissue, every 13 microseconds of go-return time, we know the reflector is 1cm deep in the body 3 component...

Physics Questions & Answers A substance has a specific heat of 0.870 J/g°C. It requires 2,000.0 joules to increase the temperature of 10.0 grams of the substance from its original temperature to its final temperature. By how many degrees did the substance increase? - CORRECT ANSWER- 230 Allen m...

Physics Questions & Answers A ball starting from rest at the top of an inclined plane gains a speed of 2 m/s for each second it rolls. What is its acceleration down the incline? - CORRECT ANSWER- 2 m/s A ball tossed vertically upward rises, reaches it highest point , and then falls back to the st...

Physics 3 Questions & Answers A 60-g sample of radioactive isotope is measured after two half-lives have passed. What pair of percentages describes the sample after two half-lives? - CORRECT ANSWER- 25% unchanged and 75% stable Calcium-51 has a half-life of 4.5 days. Only 0.75 gram remains of a ...

Physics GCSE, Questions & Answers +325 V and -325 V (equivalent to a direct current of 230 V) - CORRECT ANSWER- What peaks/troughs does the live wire alternate between and what is the equivalent of a direct current? 0 volts - CORRECT ANSWER- What voltage does the neutral wire supply? 1) Attach o...

MC Physics Questions & Answers *1.1.* An insulated container with a divider in the middle contains two separated gases. Gas 1 is initially at a higher temperature than gas 2. The divider is then removed. Which of the following observations might be made over a period of time as the two gases mix ...

Physics Questions & Answers A 0.150 kg baseball is thrown upward with an initial speed of 20 m/s. a. What is the force on the ball when it reaches half of its maximum height? b. What is the force on the ball when it reaches its peak? - CORRECT ANSWER- a. -1.47 N b. -1.47 N A beach ball is left ...

Physics Final Questions & Answers A 20 kg shopping cart moving at a velocity of 0.5 m/s collides with a store wall and stops. The momentum of the shopping cart - CORRECT ANSWER- decreases. A 75 kg person walking around a corner bumped into an 80 kg person who was running around the same corner. ...

Exam: Physics Questions & Answers (0,0) - CORRECT ANSWER- The graph above describes the motion of a ball. At what point does the ball have an instantaneous velocity of zero? 0.0 m/s - CORRECT ANSWER- What is the speed of an object at rest? 0.0-5.0s - CORRECT ANSWER- According to the graph above,...

Physics Questions & Answers A 10 kg box is resting on a horizontal surface inside a warehouse calculate the normal force acting on the box - CORRECT ANSWER- 98.1 N A 50 Kg car travels clockwise in a Horizontal circle of radius 10 meters at 5 m/s what is the magnitude of the centripetal force act...

Physics : Exam Questions & Answers 60 mi/h is approximately - CORRECT ANSWER- 30. km/h A 10. kg mass, hung onto a spring, causes the spring to stretch 2.0 cm. The spring constant is - CORRECT ANSWER- 49 N/cm A 1000-kg car is moving at 30 m/s around a horizontal unbanked curve whose diameter is 0...

Gravity Physics Questions & Answers How far apart are Pluto and Charon? - CORRECT ANSWER- 2.0 × 10^7 m If the distance from the moon to the satellite is 2.6 × 106 m, what is the mass of the satellite? - CORRECT ANSWER- 450kg In the equation for the gravitational force between two objects, whic...

Physics Quizzes Questions & Answers A ball is thrown vertically upward from the surface of the earth. Consider the following quantities (1) the speed of the ball (2) the velocity of the ball (3) the acceleration of the ball A. 1 and 3 B. 1 and 3 C. 1 only D. 2 only E. 1, 2, and 3 - CORRECT...

Physics One Questions & Answers A baseball pitcher throws a 100 mph fastball to batter Brandon Bopp. Bopp hits a 450 foot home run out of the park. When the ball contacts the bat, which force was greater: the force of the ball on the bat or the force of the bat on the ball? - CORRECT ANSWER- The ...

Physics Midterm Questions & Answers A 20-N weight and a 5.0-N weight are dropped simultaneously from the same height. Ignore air resistance. Compare their accelerations. - CORRECT ANSWER- equal A bullet is fired horizontally, and at the same instant a second bullet is dropped from the same heigh...

Modern Physics Questions & Answers A scientist obtains images of a particular star, which appears as four separate stars. Which phenomenon causes the star to appear this way? - CORRECT ANSWER- gravitational lensing A van is traveling on a road at a speed of 55 km/h. A girl sitting near the drive...

Physics Questions & Answers 0.02 seconds - CORRECT ANSWER- The time interval between two dots on the ticker tape is... A car at rest has at least two forces acting on it - CORRECT ANSWER- An incorrect statement A gardener pushes a lawnmower - CORRECT ANSWER- Which of the following are descripti...

Physics B Questions & Answers _______ is a line in which waves that are moving together are all in the same phase. - CORRECT ANSWER- wave front A 12-inch object is placed 30 inches in front of a plane mirror. A ray of light from the object strikes the mirror at a 45-degree angle. how tall is the...

Physics: Questions & Answers (a) In Checkpoint 5, if the dipole moment is rotated from orientation 2 to orientation 1 by an external agent, is the work done on the dipole by the agent positive,negative,or zero? (b) Rank the work done on the dipole by the agent for these three rotations, greatest ...

Physics Test Questions & Answers A ball is pushed with a Net Force of 10N, but another force is pushing against the ball with 10N. Describe the state of the ball. - CORRECT ANSWER- The ball is not accelerating positively or negatively, it is rolling at a constant speed in a straight line. Action...

Physics Questions & Answers A bike resting at the top of a hill would be an example of what type of energy? - CORRECT ANSWER- Potential A car traveling 89 m/s east slams on its breaks. The car stops after 12 seconds of breaking. What is the average acceleration of the car? - CORRECT ANSWER- - 7....

Physics Final Exam Questions & Answers A 10-N falling object encounters 4 N of air resistance. The net force on the object is 6 N. 4 N. 0 N. 10 N. none of the above - CORRECT ANSWER- 6 N A 1000-kg car and a 2000-kg car are hoisted to the same height. Raising the more massive car requires mo...

Physics Test Questions & Answers A ball is thrown vertically upward and then comes back down. During the ball's flight up and down, its velocity and acceleration vectors are A) always in opposite directions. B) always in the same direction. C) first in opposite directions and then in the same ...

Test-Physics Questions & Answers If a vector has components Ax < 0, and Ay < 0, then the angle that this vector makes with the positive x-axis must be in the range -90 to 180 -cannot be determined without additional info -0 to 90 -270 to 360 -180 to 270 - CORRECT ANSWER- 180 to 270 If ...

Physics Questions & Solutions - CORRECT ANSWERS1st law - CORRECT ANSWERS-a body will remain at rest or move at a constant velocity if the resultant force acting on the body is zero 2 main groups - CORRECT ANSWERS-contact and distant 2nd law - CORRECT ANSWERS-if a resultant force acts on a body t...

Physics Questions & Answers A 0.150 kg baseball is thrown upward with an initial speed of 20 m/s. a. What is the force on the ball when it reaches half of its maximum height? b. What is the force on the ball when it reaches its peak? - CORRECT ANSWER- a. -1.47 N b. -1.47 N A beach ball is left ...

Physics 1: Exam 1 Questions & Answers A "force" could be best described as a) something one body does to another body that can cause the second body to accelerate b) something one body does to another body that keeps the second body moving c) something that a body possesses, that enables it to...

AP PHYSICS 1 REVIEW 1 QUESTIONS & ANSWERS "mu" - ANSWER: coefficient of friction 100 - ANSWER: How many cm in a m? 40 - ANSWER: What percentage is passing (3) for AP physics 1? 45 - ANSWER: angle for the best range for a projectile 90 - ANSWER: angle for longest hang time for a projectile ac...

Physics 1-5 Questions & Answers A 400kg bear grasping a vertical tree slides down at constant velocity. What is the friction force that acts on the bear? - ANSWER: The bear is sliding down the tree at a constant speed (dynamic equilibrium) so the acceleration of the bear (and net force on the be...

Physics 1 Final Questions & Answers _____ is the branch of science that studies the physical world. - ANSWER: Physics _____ is the length of the route between two points. - ANSWER: Distance ______ is the change in position of an object. - ANSWER: Displacement _________ is a type force that oppos...

Physics 1 Questions & Answers 2nd law in terms of efficiency in mathematical terms - ANSWER: eff= work output. energy input= 100 2nd law in terms of efficiency in works - ANSWER: the more the disorder of a system, the less the efficiency of the system- more energy dissipated and less converted t...

Physics 1 Questions & Answers A force that causes rotation - ANSWER: torque a pull or push that tends to produce motion or a change in motion of a material body - ANSWER: force acceleration - ANSWER: meters per second squared adj/hyp - ANSWER: cos theta being at right angles to a line - ANSWER...

AP PHYSICS 1 REVIEW 1 Questions & Answers 5kx^2 - ANSWER: spring energy equation 100 - ANSWER: How many cm in a m? 1000 - ANSWER: How many mm in a m? 3600 - ANSWER: How many seconds in a hour? 40 - ANSWER: What percentage is passing for AP physics 1? 45 - ANSWER: angle for the best range for a...

Physics 1 Questions & Answers 2 identical molecules, A and B, move with the same horizontal velocities but opposite vertical velocities. Which of the following statements must be true after the 2 molecules collide? A. The sum of the KE of the molecules before the collision is at least as large as...

Y9 Physics 1 – Electricity Questions & Answers A piece of uniform wire has a resistance of 3.0Ω. What is the resistance of a similar piece of wire but 4 times as long? - ANSWER: R = 3.0Ω x 4 = 12.0Ω A piece of uniform wire has a resistance of 4.0 ohms. Calculate the resistance of a similar p...

Physics 1: exam 2 Questions & Answers *Mark each of the following statements as true or false*. If a statement refers to "two objects" interacting via some force, you are not to assume that these two objects have the same mass. 1.) Every force has one and only one 3rd law pair force. 2.) The t...

Physics 1 MIDTERM Questions & Answers 15 in = - ANSWER: 0.38 m 62 mph - ANSWER: 28 m/s 70 ft/s - ANSWER: 21 m/s A 0.52 kg bullfrog is sitting at rest on a level log. How large is the normal force of the log on the bullfrog? - ANSWER: 5.1 N A 1400 kg car is traveling along a straight road at 20...

AP Physics 1 Review Questions & Answers acceleration due to gravity - ANSWER: g= m/s/s acceleration due to gravity M = Mass of planet (kg) r = distance from the center of the plant to object location (m) adding resistors in series and parallel - ANSWER: angular displacement - ANSWER: radians r...

Physics 1 Questions & Answers ___ degrees is the SI standard for temperature. - ANSWER: Kelvin ___ helped many humans when he created the smallpox vaccine. - ANSWER: Edward Jenner ___ is a derived unit that involves force and area. - ANSWER: Pressure a bar over a number or epression - ANSWER: vi...

Physics 1 quiz Questions & Answers A 1000-kg car moving at 10 m/s brakes to a stop in 5 s. The average braking force is - ANSWER: 2000 N. A automobile and a baby carriage traveling at the same speed collide head-on. The impact force is - ANSWER: the same for both. A ball is thrown vertically in...

Physics 1 quiz 1 Questions & Answers addition of vectors - ANSWER: Draw vectors tip-to-tail, use scale drawing to find displacement and angle average acceleration - ANSWER: average speed - ANSWER: average velocity - ANSWER: centi (c) - ANSWER: components of a vector - ANSWER: the projections ...

Physics 1 quiz 1 Questions & Answers addition of vectors - ANSWER: Draw vectors tip-to-tail, use scale drawing to find displacement and angle average acceleration - ANSWER: average speed - ANSWER: average velocity - ANSWER: centi (c) - ANSWER: components of a vector - ANSWER: the projections ...

AQA GCSE Physics 1 Revision Questions & Answers Absorption - ANSWER: When a wave hits an object and is absorbed the energy of the wave can heat up the object Advantages of Digital over Analogue - ANSWER: Digital signals are affected less by interference and can be easily processed by computers. ...

College Physics 1 Questions & Answers A 0.2-kg block is held in place by a force that results in a 0.10-m compression of a spring beneath the block. The spring constant is 1.0 × 102 N/m. Assuming the mass of the spring is negligible compared to that of the block, to what maximum height would the...

Physics 1-4 Questions & Answers (P1) Define system - ANSWER: A system is an object or group of objects (P2) What are the circuit symbols - ANSWER: (P3) Define density - ANSWER: The mass per unit volume density (P4) What is the atomic structure - ANSWER: Positively charged nucleus surrounded by ...

Physics 1- Radiographic Questions & Answers at what radiofrequency do MR coils operate? - ANSWER: 64 MHz atomic nomenclature..? - ANSWER: - A = atomic mass - Z = atomic number +/- = valence state - # = number of atoms/molecules Bohr - 1913 - ANSWER: improved Rutherford's work to be more like ...

Physics 1, Questions & Answers A ball starting from rest at the top of an inclined plane gains a speed of 2 m/s for each second it rolls. What is its acceleration down the incline? 0.5 m/s2 1 m/s2 2 m/s2 4 m/s2 - ANSWER: 2 m/s2 A block pulled to the left with 15 N and to the right with 5 N at...

Physics 1 Questions & Answers A bouquet has 30 flowers. The size of the bouquet is decreased by a factor of 3. How many flowers remain? A. 27 B. 0 C. 10 D. 15 - ANSWER: C A force is applied to a surface. If the force is tripled and the surface area over which the force is applied is also tri...

Physics 1 Final, Questions & Answers 4.00 × 105 J of work are done on a 1167 kg car while it accelerates from 10.0 m/s to some final 77) velocity. Find this final velocity. C) 28.0 m/s - ANSWER: wtotal= [1/2 m*vf²] - [1/2 m*vi²] x= vf 57) A 22 kg box must be slid across the floor. If the coe...

Physics 1 & 2 (B), Questions & Answers A - ANSWER: A 10-kg block is pushed across a horizontal surface with a horizontal force of 20 N against a friction force of 10 N. The acceleration of the block is A) 1 m/s2. B) 2 m/s2. C) 5 m/s2. D) 10 m/s2. A - ANSWER: A 50-N object falling in air exper...

Physics 1 Questions & Answers 4 scalar qualities - ANSWER: temperature time mass volume 4 vector qualities - ANSWER: force position velocity acceleration A ball falls from rest for 5 seconds. Neglecting air resistance, during which of the 5 seconds does the ball's speed increasing most? ...

Physics 1 Questions & Answers 1 pascal is equal to - ANSWER: 1 newton per square meter 1kg = ?N - ANSWER: 10N (2.2 lbs) 2D Motion - ANSWER: Motion in a diagonal direction or curved direction 3 states of motion - ANSWER: At rest, constant motion, accelerated motion A gun that is initially at res...

Physics: 1-11 Questions & Answers "Centrifugal forces" are an apparent reality to observers in a reference frame that is ... A. At rest B. An intertial reference frame C. Moving at a constant velocity D. Rotating E. Bouncing - ANSWER: D. Rotating A 10-kg brick and a 1-kg book are dropped in...

Physics 1 concepts Questions & Answers 3 factors that affects ability of force/torque to cause rotations - ANSWER: 1)the magnitude of the force 2)the distance r from the point of application of the pivot 3) the angle at which the force is appliedu A 0.2 kg plastic cart and a 20 kg lead cart can...

AP Physics 1 Exam Questions & Answers Acceleration (a) - ANSWER: -Rate of change of velocity w/ respect to time -Measured in meters per second squared (m/s^2) average a = Δv/t Acceleration in SHM - ANSWER: -Acceleration is the 2nd derivative of displacement -Maximum acceleration occurs at extr...

Physics 1 Midterm Questions & Answers A 50-N crate sits on a horizontal floor where the coefficient of static friction between the crate and the floor is 0.50. A 20-N force is applied to the crate acting to the right. What is the resulting static friction force acting on the crate? A) 20 N to th...

Physics 1 Test Questions & Answers ) A 1200-kg car is pulling a 500-kg trailer along level ground. Friction of the road on the trailer is negligible. The car accelerates with an acceleration of 1.3 m/s2. What is the force exerted by the car on the trailer? A) 550 N B) 600 N C) 650 N D) 700 N ...

Physics 1 Questions & Answers ........ occur when a disturbance causes oscillations perpendicular to the propagation A) Longitudinal waves B) Longitudinal mechanical waves C) sound waves D) Transverse mechanical waves - ANSWER: D) Transverse mechanical waves 5 kilowatts/hour (kWh) is equal to...

Physics - 1 - General Physics Questions & Answers concepts of momentum and impulse - ANSWER: The impulse means that the bigger the force and the longer it acts for, the bigger the impulse will be. Impulse of force = change of momentum Define acceleration - ANSWER: Acceleration is how quickly an ...

PHYSICS 1 FINAL QUESTIONS & ANSWERS 35) Which of the following ideas is true about projectile motion with no air drag? A) Vx^2 + Vy^2 = constant B) The horizontal motion is independent of the vertical motion. C) The acceleration is +g when the object is rising and -g when falling. D) The trajec...