Interactions of Light

Heather puts a straw into a glass of water. She notices that the straw appears to be broken when she looks through the glass and the water from the side. Which term bestexplains why the straw looks like it is broken?

• absorption
• refraction
• scattering
• transmission

Tags

NGSS.MS-PS4-2

Calvin shines a thin beam of light onto a material, and the light refracts. Which diagram best shows what happens to the light?

• Picture # 1
• Picture # 2
• Picture # 3
• None of the Above

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-1

Red light waves and yellow light waves travel through air and strike the surface of glass. Only the yellow light waves travel through the glass as shown in the figure below. Which of these phrases best describes what the glass does?

• reflects red light
• absorbs yellow light
• transmits yellow light
• transmits red light

Tags

NGSS.MS-PS4-2

During a thunderstorm, Sanjay saw lightning and then heard thunder 5 s later. Why does he see the lightning before he hears the thunder?

• He would have seen the lightning and heard the thunder at the same time.
• Sound travels faster than light.
• Light travels faster than sound.
• There is no reason.

In which of these situations would light slow down?

• from glass to air
• from ice to water
• from plastic to air
• from a vacuum to air

Light refracts when traveling from air into glass because light 

• travels at the same speed in air and in glass. 
• frequency is greater in air than in glass. 
• frequency is greater in glass than in air. 
• travels slower in glass than in air.

Tags

NGSS.MS-PS4-2

Matter that transmit light is _______________.

• opaque

• transparent

• transluscent

• reflective material

All the colors that we observed in an object are _________________ colors.

• absorbed

• reflected

• transmitted

• scattered

Tags

NGSS.MS-PS4-2

Change in direction of a wave as it passes from one medium into another at an angle.

• absorption

• reflection

• refraction

• scattering

Tags

NGSS.MS-PS4-2

Speed of light

• 3000 m/s

• 30 000 m/s

• 30 000 000 m/s

• 300 000 000 m/s