Harnessing Human Energy

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. For example, a moving car or a rolling ball has kinetic energy.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state. For example, a rock at the edge of a cliff has potential energy.

Front

What is a generator?

Back

A generator is a device that converts kinetic energy into electrical energy, allowing us to use energy for various applications.

Front

Can energy be created or destroyed?

Back

No, energy cannot be created or destroyed; it can only be transformed from one form to another, according to the law of conservation of energy.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that the total energy in a closed system remains constant; energy can change forms but the total amount remains the same.

Front

What is an example of kinetic energy in everyday life?

Back

An example of kinetic energy is a bicycle moving down a hill.

Front

What is an example of potential energy in everyday life?

Back

An example of potential energy is water stored in a dam.

Front

What is the difference between kinetic and potential energy?

Back

Kinetic energy is energy of motion, while potential energy is stored energy based on position.

Front

What is a scientific argument?

Back

A scientific argument starts with a question about the natural world and is supported by evidence.

Front

What happens to energy when a ball is thrown into the air?

Back

As the ball rises, kinetic energy is converted into potential energy until it reaches its highest point, then it converts back to kinetic energy as it falls.