Waves - Lesson 8 Quiz

Which of the following is a natural source of light?

• Flashlight

• Lamp

• Fire

• Light bulb

Which of the following is an artificial source of light?

• Sun

• Candle

• Firefly

• Lamp

What is light?

• A form of sound that travels in waves

• A type of energy that travels in waves

• A natural source that can only come from the sun

• A chemical reaction that produces heat only

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Which of the following is NOT a natural source of light?

• The sun

• Fire

• A light bulb

• All of the above are natural sources of light

How does light travel?

• Through a medium only

• In patterns called sound waves

• Through empty space that contains no matter at all

• In a zigzag motion

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How long does the sunlight we see take to travel from the sun to Earth?

• About 4 years

• About 8 minutes

• Over long distances without time

• Instantaneously

What happens when light hits an object?

• It is only absorbed

• It is either reflected, absorbed, or refracted (bent)

• It stops existing

• It turns into sound

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