CBA 2 Review

Front

What is electrical energy?

Back

Electrical energy is the energy caused by the movement of electrons through a conductor, such as a wire.

Front

What is a conductor?

Back

A conductor is a material that allows electricity to flow through it easily, such as metals like copper.

Front

What is a rubber band's role in electrical energy transfer?

Back

A rubber band does not conduct electricity; it is an insulator.

Front

What is mechanical energy?

Back

Mechanical energy is the energy associated with the motion and position of an object.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it comes into contact with another surface.

Front

How does gravity affect objects?

Back

Gravity is a force that pulls objects toward the center of the Earth, affecting their motion.

Front

What is the role of a switch in an electrical circuit?

Back

A switch controls the flow of electricity in a circuit by opening or closing the path.

Front

What happens when a switch is pushed down in a circuit?

Back

Pushing down a switch closes the circuit, allowing electrical energy to flow.

Front

What is the effect of surface texture on friction?

Back

Smoother surfaces have less friction, while rougher surfaces have more friction.

Front

What is an example of mechanical energy in everyday life?

Back

Riding a bike uses mechanical energy as you pedal to move forward.