Work and Energy

Front

What happens to potential and kinetic energy as a pendulum swings from its highest to lowest position?

Back

The potential energy decreases while the kinetic energy increases.

Front

At which point is potential energy greatest in a pendulum swing?

Back

At point W.

Front

How do you calculate kinetic energy (KE)?

Back

KE = 1/2 * mass * velocity^2.

Front

Calculate the KE of a runner with a mass of 80 kg running at 8 m/s.

Back

2560 J.

Front

At which point is kinetic energy greatest in a pendulum swing?

Back

At point X.

Front

What type of energy is stored when you stretch a rubber band?

Back

Elastic potential energy.

Front

Define kinetic energy.

Back

Kinetic energy is the energy of an object 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 gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses because of its height above the ground.

Front

What is the formula for gravitational potential energy?

Back

PE = mass * gravity * height.