Unit 2 Post Test Review

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. It depends on the mass of the object and its speed.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object has due to its position in a gravitational field, typically related to its height above the ground.

Front

How does energy transfer occur in a pendulum?

Back

In a pendulum, energy transfers between kinetic energy and gravitational potential energy as it swings back and forth.

Front

What happens to the energy of a pendulum over time?

Back

The pendulum loses energy over time due to air resistance and friction, causing it to swing lower with each cycle.

Front

What is the formula for kinetic energy?

Back

The formula for kinetic energy (KE) is KE = 1/2 mv², where m is mass and v is velocity.

Front

How does mass affect kinetic energy?

Back

As mass increases, kinetic energy increases if the speed remains constant.

Front

What is the relationship between speed and kinetic energy?

Back

Kinetic energy increases with the square of the speed; if speed doubles, kinetic energy increases by a factor of four.

Front

Which has more kinetic energy: a heavier object or a lighter object moving at the same speed?

Back

A heavier object has more kinetic energy than a lighter object moving at the same speed due to its greater mass.

Front

What is the effect of speed on gravitational potential energy?

Back

Gravitational potential energy is not directly affected by speed; it depends on height and mass.

Front

What is the principle of conservation of energy?

Back

The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.