Potential & Kinetic Energy

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. It has the potential to be converted into kinetic energy.

Front

What is kinetic energy?

Back

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

Front

How is kinetic energy calculated?

Back

Kinetic energy (KE) is calculated using the formula: KE = 1/2 mv², where m is mass and v is velocity.

Front

What happens to kinetic energy when an object's speed doubles?

Back

If an object's speed doubles, its kinetic energy increases by a factor of four, since KE is proportional to the square of the speed.

Front

What is the relationship between potential energy and height?

Back

Potential energy increases with height. The higher an object is positioned, the more potential energy it has due to gravity.

Front

What is an example of potential energy?

Back

A rock held at the edge of a cliff has potential energy due to its height above the ground.

Front

What is an example of kinetic energy?

Back

A moving car or a rolling ball has kinetic energy because it is in motion.

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 type of energy does a stretched rubber band have?

Back

A stretched rubber band has potential energy due to its position and tension.

Front

What type of energy does a falling object have just before it hits the ground?

Back

Just before hitting the ground, a falling object has maximum kinetic energy and minimum potential energy.