Work and Energy Review-Physics

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, typically calculated as PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

At which point on a roller coaster is gravitational potential energy at its maximum?

Back

At the highest point of the roller coaster.

Front

What happens to potential energy as a roller coaster descends?

Back

Potential energy is converted into kinetic energy, thermal energy, and sound energy.

Front

What is the law of conservation of energy?

Back

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

Front

How do you calculate force using mass and acceleration?

Back

Force can be calculated using Newton's second law: F = ma, where F is force, m is mass, and a is acceleration.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

When does an object have no kinetic energy?

Back

An object has no kinetic energy when it is at rest.

Front

What is the relationship between work and energy?

Back

Work is done when energy is transferred from one system to another, and it is calculated as W = Fd, where W is work, F is force, and d is distance.

Front

What is potential energy dependent on?

Back

Potential energy is dependent on an object's position relative to a reference point, typically height in a gravitational field.

Front

What is the formula for calculating gravitational potential energy?

Back

The formula for gravitational potential energy is PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.