Light and waves

Which row shows the natures of light waves, sound waves and X-rays?

• A

• B

• C

• D

The diagram represents the electromagnetic spectrum. Some regions have been labelled, and some labels are missing. Which region should be labelled as infra-red waves?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

Which group contains only electromagnetic waves?

• light waves, radio waves, γ-rays

• light waves, radio waves, sound waves

• light waves, sound waves, γ-rays

• radio waves, sound waves, γ-rays

Which list shows electromagnetic waves in order of increasing frequency?

• visible light, X-rays, γ-rays

• visible light, γ-rays, X-rays

• X-rays, γ-rays, visible light

• γ-rays, X-rays, visible light

Tags

NGSS.HS-PS4-1

Infra-red waves, microwaves, radio waves and sound waves are all used for communications. Which waves travel at the same high speed in a vacuum?

• infra-red waves, microwaves and radio waves

• infra-red waves, microwaves and sound waves

• infra-red waves, radio waves and sound waves

• microwaves, radio waves and sound waves

Which row shows the natures of light waves, sound waves and X-rays?

• A

• B

• C

• D

The diagram shows a ray of light in air incident on a glass block. Some of the light is refracted, and some of the light is reflected. Two angles p and q are marked on the diagram. Which option gives the angle of incidence and shows whether the ray undergoes total internal reflection?

• p, no

• p, yes

• q, no

• q, yes

Tags

NGSS.MS-PS4-2

Which diagram correctly shows a ray of light reflected by a plane mirror?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-2

The diagram shows a ray of light inside a glass rod. The critical angle for the light in the glass is 42°. Which option shows what happens to the light when it reaches the surface of the glass rod?

• Any light reflected: no; Any light refracted: no

• Any light reflected: no; Any light refracted: yes

• Any light reflected: yes; Any light refracted: no

• Any light reflected: yes; Any light refracted: yes

Tags

NGSS.MS-PS4-2

A boy wears a shirt with a letter F on the front. He stands in front of a plane mirror. What does he see in the mirror?

• A

• B

• C

• D