Unit 5,6,7 Forms of Energy Retest

Front

What is a closed circuit?

Back

A closed circuit is a complete electrical loop that allows current to flow, enabling devices like bulbs or fans to operate.

Front

What happens when a switch is closed in a circuit?

Back

When a switch is closed, it completes the circuit, allowing electricity to flow and power the connected devices.

Front

What is the role of a battery in an electric circuit?

Back

A battery provides the electrical energy needed to power the circuit.

Front

What is light refraction?

Back

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

Front

What does it mean for light to travel in a straight line?

Back

Light travels in straight lines unless it encounters an obstacle or a medium that causes it to bend.

Front

What is the purpose of a resistor in a circuit?

Back

A resistor limits the flow of electric current, protecting components from damage.

Front

What is the difference between reflection and refraction of light?

Back

Reflection is when light bounces off a surface, while refraction is when light bends as it passes through different materials.

Front

What is an example of energy transformation in a circuit?

Back

In a circuit, electrical energy is transformed into light energy when a bulb is lit.

Front

What is the function of a switch in a circuit?

Back

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

Front

What is the significance of a circuit diagram?

Back

A circuit diagram visually represents the components and connections in a circuit, helping to understand its design.