Lab: Kinetic Energy — Unit test Answers
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What kind of energy involves the flow of charged particles?
A
thermalB
radiantC
electricalD
nuclear22
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Let's consider a scenario of a roller coaster ride. As the roller coaster at the top begins to descend, it loses height, which means its potential energy decreases and kinetic energy starts increasing and reaches its maximum value.By using the above scenario, which statement best compares potential and kinetic energy?
A
Objects always have more potential energy than kinetic energy.B
Kinetic energy increases and potential energy decreases when the velocity of an object increases.C
Only potential energy decreases when an object’s height increases.D
Objects always have more kinetic energy than potential energy.23
This diagram shows a baseball’s motion.
A
Kinetic energy becomes potential energy between points R and S.B
Maximum potential energy is at point P.C
Maximum potential energy is at point R.D
Potential energy becomes kinetic energy between points P and Q.24
Ella has a mass of 56 kg, and Tyrone has a mass of 68 kg. Ella is standing at the top of a skateboard ramp that is 1.5 meters tall. Which conclusion is best supported by the given information?
A
If Tyrone stands at the top of the same ramp, his potential energy will be less than Ella’s.B
If Tyrone stands at the top of a 1 m high ramp, his potential energy will be greater than Ella’s.C
If Tyrone stands at the top of the same ramp, his potential energy will be the same as Ella’s.D
If Tyrone stands at the top of a 2 m high ramp, his potential energy will be greater than Ella’s.25
Shondra takes notes in class.
A
Switch "the energy of moving objects" and "the ability to do work" and place chemical energy under "Forms of energy."B
Switch "the energy of flowing electrical charges" and "the energy in a spring" and place kinetic energy under "Forms of energy."C
Switch "the energy in the nuclei of atoms" and "the energy stored in objects'" and place nuclear energy under "Main categories of energy."D
Switch "the energy from the Sun" and "the energy of a rock on a hill" and place electrical energy under "Main categories of energy."Did you find these answers helpful?
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