Conceptual physics - Study guides, Class notes & Summaries

Conceptual Physics Midterm Exam Prep Questions with Correct Answers The newton is a unit of a. force b. mass c. inertia d. density - Answer-a. force If an object's mass is decreasing while a constant force is applied to the object, the acceleration a. remains the same. b. decreases. c. increases. - Answer-c. increases. Two billiard balls having the same mass and speed roll toward each other. What is their combined momentum after they meet? a. 0 b. half the sum of their original momentu...

Conceptual Physics Test 1 Questions and Answers All Correct What is energy? - Answer-the ability to do work What happens to energy in an explosion? - Answer-stored energy is released and converted into heat in a small space, heat vaporizes matter turning into hot gas. What happens when the conversion of heat in an explosion is faster? - Answer-Explosion becomes more dangerous. (a fast conversion of energy to heat causes an explosion) Any form of energy can be converted into what? - A...

Conceptual Physics Ch 9 Test Questions and Answers Newton's most celebrated synthesis was and is of A) earthly and heavenly laws. B) weight on Earth and weightlessness in outer space. C) masses and distances. D) the paths of tossed rocks and the paths of satellites - Answer-A) earthly and heavenly laws. Universal Law of Gravity - Answer-Force ~ mass1 x mass2 / distance Universal Gravitational Constant, G - Answer-F = G (m1 x m2 /distance) G = 6.67E x 10^-11 Nm2/kg2 Mass of Earth...

Conceptual Physics Chapter 15 Test Questions with Complete Solutions When you touch a cold piece of ice with your finger, energy flows A) from your finger to the ice B) from the ice to your finger C) actually, both ways - Answer-A) from your finger to the ice Heat energy travels from an object with a high A) internal energy to an object with a lower internal energy B) temperature to an object with a lower temperature C) Both of these, for they say essentially the say the same thi...

Conceptual Physics Chapter 18 Test Questions with Correct Answers The lowest temperature possible in nature is A) 0 degrees C. B) -273 degrees C. C) 4 K. - Answer-B) -273 degrees C. A volume of air has a temperature of 0 degrees C. An equal volume of air that is twice as hot has a temperature of A) 0 degrees C B) 64 degrees C C) 100 degrees C D) 273 degrees C E) none of the above choices are correct - Answer-D) 273 degrees C To wholly convert a given amount of heat energy into m...

Conceptual Physics Exam Questions and Answers All Correct The charge of an electron is ____. - Answer-Negative Atomic nuclei of almost all elements consist of _____. - Answer-Protons and neutrons Two like charges ____. - Answer-Repel each other Protons and electrons ____. - Answer-Attract each other Electrical forces between charges are normally strongest when the charges are _____. - Answer-Close together Coulomb's law says that the force between any two charges depends _____....

A vibration is also known as a ___ in time ANSWER: wiggle A wiggle in both time and space is known as a ___ ANSWER: wave If the mass of the object hanging on the end of a string of a pendulum is doubled, how is the period of the pendulum affected? ANSWER: Nothing is affected by mass. If the amplitude of a wave is 2 meters, then the trough to crest distance of the wave is ANSWER: 4. If the frequency of a certain wave is 20Hz, then its period is ANSWER: 1/20 s Deeagles - Stuvia US...

Conceptual Physics Chapter 9 Test Questions and Answers If the mass of Earth somehow increased with no change in radius, your weight would - Answer-increase also When the distance between two stars decreases by one third, the force between them - Answer-increases to nine times as much You experience weightlessness - Answer-in the absence of a supporting surface in a freely falling elevator momentarily when you step off a chair *all of the answers are correct* If the moon had twic...

Conceptual Physics 12th Edition Hewitt Test Bank Chapters 1 -36 100% Complete

Conceptual Physics Ch 4 Test Questions with Answers The force of friction can occur A) with sliding objects. B) in water. C) in air. D) all of the above. - Answer-D) all of the above. When Sanjay pushes a refrigerator across a kitchen floor at a constant speed, the force of friction between the refrigerator and the floor is A) less than Sanjay's push. B) equal to Sanjay's push. C) equal and opposite to Sanjay's push. D) more than Sanjay's push. - Answer-C) equal and opposite ...