Energy Unit Assessment (2020)

Front

What happens to a toy car's kinetic and potential energy as it travels up a ramp?

Back

As the toy car travels up the ramp, its kinetic energy decreases while its potential energy increases.

Front

Does a ball have both potential and kinetic energy when picked up from the ground and placed on a table?

Back

True, the ball has both potential energy (when elevated) and kinetic energy (when in motion).

Front

Which simple machine is most likely used to move an object over great distances on a flat surface?

Back

A ramp or inclined plane.

Front

Between which two locations does a car's kinetic energy transform into potential energy on a roller coaster?

Back

Between locations Y and Z.

Front

At which point does a swinging pendulum ball have the greatest potential energy?

Back

At point 1, when it is at its highest position.

Front

Define kinetic energy.

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

Define potential energy.

Back

Potential energy is the stored energy of an object due to its position or state.

Front

What is the formula for calculating kinetic energy?

Back

Kinetic energy (KE) = 1/2 mv², where m is mass and v is velocity.

Front

What is the formula for calculating potential energy?

Back

Potential energy (PE) = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is the law of conservation of energy?

Back

Energy cannot be created or destroyed; it can only be transformed from one form to another.