Electromagnetic Waves

Gamma rays are the highest frequency electromagnetic waves. Which are true about Gamma rays.

• They are used in 5G cellphone communication

• They are more dangerous to humans than UV rays

• They have a smaller wavelength than visible light

• Gamma rays carry less energy than radio waves

Which of the following are true of electromagnetic waves?

• They all travel at the same speed

• They need a medium to travel

• Only a small portion of them are visible to humans

• They all carry the same amount of energy

_____________________light is the only type of EM wave detected by the human eye.

• Red
• Gamma
• Microwave
• Visible

Which wave has the largest frequency?

• A
• B
• C
• None (same frequency)

What does this picture represent?

• wavelength

• echolocation

• amplitude

• peak

A wave that can travel through matter and empty space is a:

• electromagnetic wave

• longitudinal wavy

• transverse wave

• mechanical

The higher the frequency the ______ the energy. 

• higher
• lower
• neither, stays the same

The lower the frequency the ______ the energy.

• higher

• lower

• neither, stays the same

The wavelength of a sound wave is 20m. The frequency is 5 Hz. What is the wave speed?

• 4 m/s

• 100 m/s

• 25 m/s

• 15 m/s

Which transverse wave has the highest frequency?

• 1

• 2

• 3

• 4