PS.6 States and Forms 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 relative to the ground. It is calculated as PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

At what position does a cyclist have the least gravitational potential energy?

Back

The cyclist has the least gravitational potential energy at the lowest point of the track.

Front

What happens to kinetic energy as an object rises?

Back

As an object rises, its kinetic energy is transformed into potential energy.

Front

At what position does a rock acquire the greatest potential energy?

Back

The rock acquires the greatest potential energy at the highest point.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object has due to its motion, calculated as KE = 1/2 mv², where m is mass and v is velocity.

Front

What causes a pendulum to eventually slow and stop?

Back

A pendulum eventually slows and stops due to friction, which dissipates energy as heat.

Front

Which skier has greater potential energy?

Back

The skier at a higher elevation has greater potential energy.

Front

What is the relationship between potential energy and height?

Back

Potential energy increases with height; the higher an object is, the more potential energy it has.

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.

Front

How does friction affect energy in a system?

Back

Friction converts kinetic energy into thermal energy, causing a loss of mechanical energy in a system.