Concept 2.1 Test: Kinetic Energy

Front

What does velocity describe about an object?

Back

Velocity describes the speed and direction of an object.

Front

What happens to the potential energy of a ball as it falls off the edge of a table?

Back

The potential energy decreases as the kinetic energy increases.

Front

How is kinetic energy calculated?

Back

Kinetic energy (KE) = 1/2 * mass (m) * velocity (v)^2.

Front

What is the kinetic energy of a 100 kg object moving at 5 m/s?

Back

1,250 J.

Front

What type of energy do you have when riding a bicycle?

Back

Kinetic energy.

Front

Which car has the most kinetic energy: a car at 65 mph, 20 mph, or 5 mph?

Back

A car at highway speed (65 mph) has the most kinetic energy.

Front

Define kinetic energy.

Back

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

Front

What is the unit of measurement for energy?

Back

Joule (J).

Front

How does mass affect kinetic energy?

Back

Kinetic energy increases with greater mass if velocity remains constant.

Front

How does speed affect kinetic energy?

Back

Kinetic energy increases with the square of the speed.