Waves practice 2

This type of waves is used in communications

• Gamma

• Radio

• X-rays

• Ultraviolet

Which type of waves has the highest frequency?

• gamma

• x-rays

• microwaves

• visible light

All electromagnetic waves can travel through vacuum

• True

• False

• only some of them

Electromagnetic waves are

• Transverse waves

• Longitudinal waves

Which one of these has longer wavelength?

• 
• 

Which wave has lower frequency?

• 
• 

What did the amplifier do?

• increased the frequency

• increased the wavelength

• increased the amplitude

What is a property of all electromagnetic waves?

• They are longitudinal

• They travel at the speed of sound.

• They can travel through a vacuum.

The frequency of x-rays is _____ than gamma rays.

• lower

• higher

Electromagnetic waves transfer energy but do NOT transfer

• matter

• power

• energy