Energy 5.1

Front

Energy is the ability to do __________ or to cause change.

Back

Work

Front

Energy can be transferred from one object to another. Give an example.

Back

When a boy throws a frisbee, energy is transferred from the boy to the frisbee.

Front

What is the independent variable in an experiment?

Back

The factor that is changed on purpose, such as the brand of bubble gum in Miley's experiment.

Front

What is work in scientific terms?

Back

Work occurs when a force causes an object to move.

Front

If a wall does not move when pushed, did work occur?

Back

No, Taryn did not do work because the wall did not move.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential and kinetic energy in an object.

Front

What is the purpose of a controlled experiment?

Back

To test one variable while keeping others constant.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion.

Front

What is potential energy?

Back

Potential energy is stored energy based on an object's position.

Front

How can you increase the kinetic energy of an object?

Back

By increasing its speed or mass.