Quiz on Light and Sound

What happens when light touches the closed eyes of a sleeping child?

• The child awakes.

• The child falls asleep.

• The child dreams.

• The child laughs.

What is "refraction"?

• Bending of light

• Absorption of light

• Reflection of light

• Blocking of light

What is "dispersion" in terms of light?

• Spreading of light into colors

• Absorption of light

• Reflection of light

• Blocking of light

What does "vibration" refer to?

• Rapid movement back and forth

• Slow movement

• No movement

• Circular movement

What are atoms described as in the text?

• The largest building blocks of matter

• The smallest building blocks of matter

• Invisible blocks of matter

• The heaviest blocks of matter

Which of these is a source of light that can be seen during a storm?

• A pencil

• Lightning

• A chair

• A book

Which of these is a source of light that is also a planet?

• The Moon

• A firefly

• A star

• None of the above

What is a source of light?

• An object that reflects light

• An object that absorbs light

• An object that has its own light

• An object that blocks light

Which is the biggest source of natural light?

• The Moon

• The Sun

• Fireflies

• Glow worms

What is an example of fire used as a source of light for visibility?

• A candle

• A flashlight

• A light bulb

• A glow stick