3.4.7 | UNIT 4 Practice Assessment

Front

What is an electrical circuit?

Back

An electrical circuit is a closed loop that allows electricity to flow through it.

Front

What does it mean if an electrical circuit is open?

Back

An open circuit means that the path for electricity is broken, preventing the flow of electric current.

Front

What material is best for insulating cold drinks?

Back

Plastic is a good insulator that helps keep cold drinks cold.

Front

What is a good conductor of thermal and electrical energy?

Back

Copper is a good conductor of both thermal and electrical energy.

Front

What is energy of motion?

Back

Energy of motion, or kinetic energy, is the energy that an object possesses due to its movement.

Front

What happens when a basketball bounces on the floor?

Back

When a basketball bounces, it does not transfer energy of motion to another object; it simply returns to its original position.

Front

What do all sound waves have in common?

Back

All sound waves are formed by vibration and can travel through different types of matter.

Front

What is insulation?

Back

Insulation is a material that reduces the transfer of heat or electricity.

Front

What is a conductor?

Back

A conductor is a material that allows electricity or heat to pass through it easily.

Front

What is the difference between thermal energy and electrical energy?

Back

Thermal energy is the energy of heat, while electrical energy is the energy of moving electrons.