Instant velocity - Study guides, Class notes & Summaries

Explanations of natural phenomena supported by large amounts of data are called __________. - theories The transfer of energy through matter by the direct contact of particles is called __________. - conduction What occurs when the expectations of a scientist change how the results of an experiment are viewed? - bias How are a hypothesis and a theory similar? - They are attempts to explain natural phenomena. ____________ is the application of science to help people. - Technology A(n) ___...

PHYS 204 Exam Questions and Answers 100% Solved | Graded A+ Can the equations of kinematics be used in a situation in which the acceleration varies in time? - No Can the equations of kinematics be used when the acceleration is zero? - Yes Two cars are moving in the same direction in parallel lanes along a highway. At some instant, the velocity of car A exceeds the velocity of car B. Does this mean that the acceleration of A is greater than that of B? - No If you know the position vecto...

PHYS 204 Exam Questions With 100% Correct Answers Guaranteed Pass. Can the equations of kinematics be used in a situation in which the acceleration varies in time? - AnswerNo Can the equations of kinematics be used when the acceleration is zero? - AnswerYes Two cars are moving in the same direction in parallel lanes along a highway. At some instant, the velocity of car A exceeds the velocity of car B. Does this mean that the acceleration of A is greater than that of B? - AnswerNo If you ...

Kinematics The study of motion without regard to forces Kinetics The study of forces on systems in motion Design Process Identification of need Background research Goal statement Performance Specs Ideation and invention (Brainstorm) Analysis Selection Detailed Design Prototype/testing Production DOF The number of independent measurements (parameters) necessary to uniquely define a system's position at any instant. General motion Complex motion Rotation...

Quiz: If you set the cruise control of your car to a certain speed and take a turn, the speed of the car will remain the same. Is the car accelerating? Ans: Yes Quiz: While an object is in projectile motion (with upward being positive) with no air resistance Ans: the horizontal component of its velocity remains constant and the vertical component of its acceleration is equal to -g. Quiz: For general projectile motion, when the projectile is at the highest point of its trajectory A...

Physics Science 20 Question and answers already passed Physics Science 20 average speed- description of motion when speed is changing the total distance over the total time instantaneous speed- the speed in an instant - correct answer average speed instantaneous speed scalar- only magnitude vector- magnitude + direction - correct answer scalar vector distance- is measured along a path without regard to direction displacement- the measure from the starting point to the end ...

Question 1 Correct 6.00 points out of 6.00 A ball rolls with a speed of 2 m /s along a horizontal table. If the ball rolls off the table and lands on the floor 0.50 m from the edge of the table, what is the height of the table? Select one: a. 1.2 m b. 0.1 m c. 0.3 m d. 0.6 m Question 2 Correct 6.00 points out of 6.00 If a vector pointing toward the north is crossed with one pointing toward the east, the resulting vector is pointing . Select one: a. up b. down c. south d. Non...

rigid body - object of non-zero size that cannot change shape position - location and orientation CoG - average location of all weight of an object (typically in midline a bit below navel of humans) orientation in space - position with respect to the points of a compass or other directions motion of rigid body - change in position denoted by its location and orientation at every instant in time) distance - total distance travelled (SI unit: m) displacement - how far an object is from i...

AQA A Level PHYSICS (7408/3A) Paper 3 Section A Question Paper & Mark scheme (Merged) June 2023 [VERIFIED] A stroboscope emits bright flashes of white light. The duration of each flash and the frequency of the flashes can be varied. Table 1 shows information about the stroboscope. Table 1 Minimum Maximum Duration of each flash / μs 60 300 Frequency of flashes / Hz 1 150 The duration of each flash is T1. The time from the start of a flash to the start of the next flash is T2. The duty c...

Question 1 Correct 6.00 points out of 6.00 A 0.500 kg steel ball is dropped from a height of 4.00 m onto a horizontal steel slab. The collision appears elastic in that the ball rebounds to its original height. If the collision lasts for 2.00 × 10−3 s, which of the following is the impulse imparted to the ball and the average force applied to the ball during the collision? Select one: a. I = 8.49 kg•m / s F = 4.25 × 103 N b. I = 8.85 kg•m / s F = 4.43 × 103 N c. I = ...