Energy Transformations and Conservation of Energy

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 measured relative to a reference point, such as the ground.

Front

What happens to kinetic energy as a roller coaster goes downhill?

Back

As a roller coaster goes downhill, potential energy is converted into kinetic energy, causing the coaster to speed up.

Front

What is kinetic energy?

Back

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

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

What is friction?

Back

Friction is a force that opposes the motion of an object, caused by the interaction between surfaces in contact.

Front

How does friction affect motion on an oily floor?

Back

On an oily floor, the amount of friction is reduced, making it difficult to walk as there is less grip.

Front

What is an example of energy transformation from chemical to electrical to light energy?

Back

A battery causes a flashlight to shine, transforming chemical energy stored in the battery into electrical energy, which then produces light energy.

Front

What is total mechanical energy?

Back

Total mechanical energy is the sum of an object's potential energy and kinetic energy at a given point.

Front

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

Back

Gravitational potential energy is at its maximum at the highest point of the roller coaster.

Front

What happens to total energy as a skater moves down a ramp?

Back

The skater's total energy remains constant; it transforms between potential and kinetic energy but the total amount does not change.