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WorksheetsConservation of Energy
Total questions: 15
Worksheet time: 2hrs 35mins
1. A ball has a 17 J of kinetic energy and its mechanical energy is 25 J. If the ball has a mass of 3.2 kg, what is its height above the ground?
0.25 m
0.52 m
5.2 m
25 m
When something is dropped, what type of energy transfer takes place?
Kinetic to Potential
Gravitational Potential to Kinetic
Electrical to Chemical
Heat to Nuclear
A 40 kg crate is picked up by a crane to a height of 50m. The crate falls. What is the velocity of the crate just before it hits the ground?
2000 Joules
19,600 Joules
1000 m/s
31.62 m/s
The Law of Conservation of Energy states that energy is never __________________ or _________________, only transferred.
created, destroyed
created, subtracted
added, subtracted
destroyed, subtracted
What are the units of energy?
Watt
Newton
Joule
Kelvin
A skydiver jumps out of a helicopter. What is happening in terms of energy?
He is gaining potential energy as he falls, and losing kinetic energy.
He is gaining kinetic energy as he falls and losing potential energy.
His kinetic and potential energy is always the same.
He is gaining kinetic and potential energy at the same time.
The faster an object moves, the _______________ kinetic energy it must carry.
more
less
constant
varying
What is the Ug at point A
14 J
12 J
6 J
8 J
