[GRADE 5] UNIT 3: FORCE, ENERGY, AND MOTION REVIEW

Front

What is reflection?

Back

Reflection is the bouncing back of light when it hits a surface, allowing us to see images, like seeing ourselves in a mirror.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, such as from air into water.

Front

What is a non-renewable energy source?

Back

A non-renewable energy source is a type of energy that cannot be replenished in a short period of time, such as coal, oil, and natural gas.

Front

What is a renewable energy source?

Back

A renewable energy source is a type of energy that can be replenished naturally over time, such as wind, solar, and hydro energy.

Front

What is a circuit?

Back

A circuit is a closed loop that allows electricity to flow, consisting of a power source, wires, and a load (like a light bulb).

Front

What happens when a switch in a circuit is open?

Back

When a switch is open, it breaks the circuit, preventing electricity from flowing and the light bulb from lighting up.

Front

What is the role of a conductor in a circuit?

Back

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

Front

What is an insulator?

Back

An insulator is a material that does not allow electricity to flow through it easily, such as rubber or wood.

Front

What is energy?

Back

Energy is the ability to do work or cause change, and it can exist in various forms, such as kinetic, potential, thermal, and electrical energy.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion; the faster an object moves, the more kinetic energy it has.