Potential and Kinetic Energy Answers
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A sled is at rest at the top of a slope 2 m high. The sled has a mass of 45 kg. What is the sled’s potential energy? (Formula: PE = mgh)
A
90 JB
56.8 JC
441 JD
882 J2
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This diagram shows a skier moving down a hill.
A
The skier has potential and kinetic energy.B
The skier has only potential energy.C
The skier has only kinetic energy.D
The skier does not have potential or kinetic energy.3
Which two factors are used to calculate the kinetic energy of an object?
A
gravity and velocityB
velocity and massC
mass and volumeD
volume and height4
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.5
What is the kinetic energy of a ball with a mass of 0.5 kg and a velocity of 10 m/s? (Formula:)
A
25 JB
5 JC
50 JD
100 J
7
The amount of kinetic energy an object has depends on which feature of the object?
A
its motionB
its positionC
its gravityD
its height8
The diagram shows a person holding a bow and arrow.
A
pulling farther back on the stringB
releasing the stringC
holding the arrow higherD
decreasing the mass of the arrow
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