KE
A small ball is rolling across the floor. Which statement is true about the ball’s kinetic energy?
A. It has no kinetic energy because it is small.
B. It has kinetic energy because it is moving.
C. It has kinetic energy only if it is hot.
D. It has no kinetic energy if it is round
B. it has kinetic energy because it is moving
A soccer ball is sitting still on the ground. A player kicks the ball, and it starts rolling faster and faster. What happens to the ball’s kinetic energy as it speeds up? A. It disappears.
B. It stays the same.
C. It increases.
D. It turns into potential energy.
C. It increases.
What is kinetic energy
energy an object has because it is moving
What is Potential Energy
Energy that is stored because of an object's position or condition.
An object is moving at a certain speed. If its mass is doubled but its speed stays the same, what happens to its kinetic energy?
A. It stays the same.
B. It is cut in half.
C. It doubles.
D. It becomes four times as much.
C. It doubles.
A rock is resting at the edge of a cliff and not moving. What type of energy does it have most of at that moment?
A. Only kinetic energy
B. Mostly gravitational potential energy
C. Only thermal (heat) energy
D. No energy at all
B. Mostly gravitational potential energy
wo identical carts are rolling on a track. Cart A moves at 3 m/s, and Cart B moves at 6 m/s. How does Cart B’s kinetic energy compare to Cart A’s?
A. Cart B has the same kinetic energy as Cart A.
B. Cart B has twice as much kinetic energy as Cart A.
C. Cart B has three times as much kinetic energy as Cart A.
D. Cart B has four times as much kinetic energy as Cart A.
D. Cart B has four times as much kinetic energy as Cart A