Front

What is the definition of an open circuit?

Back

An open circuit is a circuit in which the path is broken, preventing current from flowing.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another due to a change in its speed.

Front

What are the different forms of energy present in a battery-powered toy?

Back

The forms of energy include electrical energy (from the battery), kinetic energy (motion of the toy), and sound energy (from the drum).

Front

Why is plastic considered an insulator?

Back

Plastic is considered an insulator because it does not allow electric current to flow through it easily.

Front

What happens to light when it passes through a prism?

Back

When light passes through a prism, it is refracted and separated into its component colors.

Front

What is the role of a switch in a circuit?

Back

A switch controls the flow of electricity in a circuit by opening (breaking the circuit) or closing (completing the circuit) it.

Front

How can you keep bulbs lit while turning off a bell in a circuit?

Back

You can keep the bulbs lit by removing the wire that connects the bell, while ensuring the bulbs remain connected to the power source.

Front

What is the principle of energy conservation in circuits?

Back

The principle of energy conservation states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is the difference between conductors and insulators?

Back

Conductors allow electric current to flow easily (e.g., metals), while insulators resist the flow of electric current (e.g., rubber, plastic).

Front

What is the effect of temperature on resistance in a conductor?

Back

As temperature increases, the resistance of a conductor typically increases, which can affect the flow of current.