Quiz on Waves and Sunscreen

What is the "frequency" of waves?

• The number of waves passing a point each second

• The height of a wave

• The distance between waves

• The speed of light

How fast do light waves travel?

• 150 million meters per second

• 300 million meters per second

• 450 million meters per second

• 600 million meters per second

What does a higher SPF number indicate?

• Less protection from the sun

• More protection from the sun

• Faster tanning

• Longer-lasting sunscreen

What is the "frequency" of a wave?

• The height of a wave

• The number of waves per second

• The speed of a wave

• The color of a wave

What happens to the number of waves per second when the wavelength is shorter?

• More waves per second

• Less waves per second

• No change in waves per second

• Waves stop completely

If a wave has a long wavelength, what can be said about its frequency?

• High frequency

• Low frequency

• Constant frequency

• No frequency

Which colour of light would have the shortest wavelength?

• Red

• Blue

• Green

• Yellow

What is the distance between two consecutive peaks of a wave?

• Frequency

• Amplitude

• Wavelength

• Velocity

What colour of light has the longest wavelength?

• Violet

• Blue

• Red

• Green

What is the sequence of waves from longest to shortest wavelength?

• Gamma rays, X-rays, ultraviolet, light, infrared, microwaves, radio waves

• Radio waves, microwaves, infrared, light, ultraviolet, X-rays, gamma rays

• Light, infrared, microwaves, radio waves, gamma rays, X-rays, ultraviolet

• Ultraviolet, light, infrared, microwaves, radio waves, X-rays, gamma rays