Week 16 Light and Sound

Front

What is the primary source of light on Earth?

Back

The sun.

Front

True or False: Sound travels faster than light.

Back

False.

Front

Through which medium does sound travel fastest?

Back

Solids.

Front

True or False: Sound travels in waves.

Back

True.

Front

What happens to your pupils in bright light?

Back

Get smaller.

Front

What is light?

Back

Light is a form of energy that makes things visible.

Front

What is sound?

Back

Sound is a vibration that travels through air, water, or solids.

Front

What do we call the distance between two peaks of a wave?

Back

Wavelength.

Front

What is the speed of light in a vacuum?

Back

Approximately 299,792 kilometers per second.

Front

What is reflection of light?

Back

Reflection is when light bounces off a surface.