Which wave phenomenon makes it possible for a player to hear sound from a referee's whistle in an open field even when standing behind the referee?

• diffraction

• Doppler effect

• reflection

• refraction

Tags

NGSS.MS-PS4-2

Does light waves diffract easily?

• Yes.

• No.

• Maybe.

• Depends.

Tags

NGSS.MS-PS4-2

When does diffraction occur?

• When waves pass though an opening.

• When you can hear your friend around the corner.

• When your mom yells at you for getting this answer wrong.

Tags

NGSS.MS-PS4-2

You can only see the diffraction of light waves when the wave is going around something.

• true

• false

Diffraction isn't involved in waves changing direction when they go through or pass an opening.

• true

• false

Tags

NGSS.HS-PS4-5

What is diffraction?

• The bending of waves around obstacles

• The reflection of waves off surfaces

• The absorption of waves by materials

• The transmission of waves through a medium

Tags

NGSS.MS-PS4-2

Which of the following is a real-world example of diffraction?

• Hearing sound around a corner

• Light reflecting off a mirror

• A rainbow forming in the sky

• A pencil appearing bent in water

In which scenario is diffraction most likely to occur?

• When the wavelength is much larger than the obstacle

• When the wavelength is much smaller than the obstacle

• When the wavelength is equal to the size of the obstacle

• When there is no obstacle present

Tags

NGSS.HS-PS4-1

Which type of wave is most commonly associated with diffraction?

• Sound waves

• Radio waves

• Light waves

• All of the above

Tags

NGSS.HS-PS4-3

What happens to the diffraction pattern as the size of the opening decreases?

• The pattern becomes more spread out

• The pattern becomes more concentrated

• The pattern disappears

• The pattern remains unchanged