Unit 10 Test - Light

Match the following types of waves with their characteristics.

• Waves that have a non-sinusoidal waveform.

• square waves

• Waves that oscillate perpendicular to the direction of energy transfer.

• longitudinal waves.

• Waves that oscillate parallel to the direction of energy transfer.

• transverse waves.

Electromagnetic waves

• need a medium to travel through.
• can travel through vacuum of space.
• don't travel

The part of the shadow that is completely dark is called the (a)   .

• black hole
• penumbra
• umbra

Which electromagnetic wave is NOT transparent in glass?

• Visible light
• Ultraviolet
• Radio

The source of all electromagnetic waves is (a)  

• heat.
• electric fields.
• vibrating charges.

Which is NOT an electromagnetic wave?

• Sound waves
• Light waves
• X-rays

It was hard for scientists to determine the speed of light because it (a)   .

• moved too slow
• moved too fast
• it was too hard to detect.

Heat lamps give off mostly

• X-rays.
• infrared waves.
• ultraviolet waves.

Which type of electromagnetic wave is transparent through glass ​ (a)   .

• ultraviolet

• infrared

• Visible Light

Light does not pass through what kind of materials?

• transparent
• opaque
• neither transparent or opaque