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20 questions
Energy in motion is ____________ energy.
a car parked on a steep hill
a tennis ball rolling across the court
a picture hanging on the wall
Height
Friction
Mass
The potential energy decreases AND the kinetic energy decreases.
The potential energy decreases BUT the kinetic energy increases.
When does an object have NO kinetic energy?
when it is moving
What is the total of kinetic energy and potential energy of a system?
mechanical energy
electrical energy
nuclear energy
What was the Potential energy of the car at very top of the hill if the car had 0 J of Kinetic energy?
100 joules
50 joules
Energy cannot be created nor destroyed it just transferred from one form to another. This law is known as ______.
Newton's Law of Motion
Law of Conservation of Energy
A person is biking down a hill. They have 20 J of kinetic energy and 50 J of potential energy.
How much mechanical energy does this person have?
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