Light Week 3/7/17

One way in which light waves are different from sound waves is that light waves--

• can move through empty space
• are caused by rapid vibrations
• travel more slowly
• can be reflected

The greater the frequency of a sound wave, the--

• lower the pitch
• higher the pitch
• softer the sound
• louder the sound

A student made a track for a toy sled using 4 different materials. At which section of the track if friction most likely to cause the greatest resistance to the motion of the toy sled?

• 1
• 2
• 3
• 4

Which pair of colors is in order from the longest wavelength of light in the visible spectrum to the shortest wavelength?

• green, orange
• yellow, red
• violet, blue
• red, violet

Which explains why the fork looks different under water?

• light can't pass through the glass
• the wavelength of light lengthens
• the amount of light increases when going through water
• light is refracted at an angle

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

Smooth surfaces _______ a lot of light.

• reflect
• bend
• absorb
• twist

Tags

NGSS.MS-PS4-2

What is a prism?

• a transparent object that separates white light
• an opaque object that appears black
• a translucent object

Tags

NGSS.MS-PS4-2

Why do we see objects as white?

• They absorb all light
• They reflect all light
• They absorb some light and reflect some light

Tags

NGSS.MS-PS4-2

_____ is a lens that is thicker in the middle and makes an object appear bigger.

• prism
• convex lens
• concave lens
• mirror

______ is a lens that is thicker on its edges and makes an object appear smaller?

• mirror
• convex lens
• concave lens
• prism