Unit 1, Chapter 1: Harnessing Human Energy

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. For example, a flying soccer 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 battery has potential energy.

Front

Where is potential energy greatest on a roller coaster?

Back

Potential energy is greatest at the highest point of the roller coaster, which is point W.

Front

What problem do rescue workers face in a blackout?

Back

They face the problem of their devices running out of charge and not having a way to recharge them.

Front

What is physical science?

Back

Physical science is the study of the physical world, including matter, energy, and the laws governing them.

Front

What is an example of energy transformation?

Back

An example of energy transformation is a battery converting chemical energy into electrical 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

What is an example of potential energy in everyday life?

Back

An example of potential energy is a stretched rubber band, which has stored energy that can be released.

Front

What is the difference between potential and kinetic energy?

Back

Potential energy is stored energy based on position, while kinetic energy is energy of motion.

Front

What is an example of kinetic energy in sports?

Back

An example of kinetic energy in sports is a basketball being dribbled down the court.