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WorksheetsMechanical Energy
Total questions: 23
Worksheet time: 20mins
What are the units for energy?
Watts
Joules
Newtons
meters
What has to be true about an object for it to have kinetic energy?
it must be moving
it must be elevated
it must be experiencing a net force
it must be accelerating
Does your desk have kinetic energy right now? Explain and justify your answer.
yes because it is sliding across the room right now
no because it is not moving
yes because it has someone sitting in it
no because it is here on earth
What is energy?
The pivot point allowing a lever to move
A push or a pull
Measurement of weight
The ability to move or allow something to move
What is an example of kinetic energy?
A: Water moving down a waterfall
B: A car parked in a driveway
C: A baby waving its hands
D: Both A and C
What is an example of potential energy?
A book sitting on a shelf
A car moving down the highway
A person playing basketball
Both B and C
Which of the following objects has the most kinetic energy?
A 20 kg toddler running at 5 m/s
A 50 kg toddler running at 30 m/s
A 90 kg toddler running at 30 m/s
A 100 kg toddler running at 2 m/s
A 5 kg ball is lifted 12 m above the ground. It's gravitational potential energy is
60 J
600 J
17 J
2.4 J
How much KE does a moving 6 kilogram object have if it moves with a velocity of 3 m/s?
27 J
18 J
9 J
2 J
A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?
1457 Joules
22,584 Joules
15 Joules
45,167Joules
