Sound, Light, Waves

Which of these materials on the walls of a room wold work BEST to keep sound from making an echo?

• marble

• glass

• carpet

• wood

Tags

NGSS.MS-PS4-2

Which of these is a way that sunglasses help protect the eyes?

• refracting more light into the eyes

• reflecting light rays away from the eyes

• reflecting more light rays into the eyes

• refracting light rays away from the eyes

Tags

NGSS.MS-PS4-2

Which of the following devices use radio waves?

• wired telephone, oven, dishwasher

• Wireless internet, cell phones, radio-controlled helicopters

• xray machine, radar

Some students were on a tour exploring the inside of a cave. While the students were in the cave they realized they heard an echo every time they spoke. Which MOST likely caused the echo to occur?

• the accumulation of the sound waves

• the diffraction of the sound waves

• the reflection of the sound waves

• the refraction of the sound waves

Tags

NGSS.MS-PS4-2

Anabel sits in front of a mirror. She is able to see herself in the mirror because light is...

• refracted by the mirror

• absorbed by the mirror

• reflected by the mirror

• blocked by the mirror

Tags

NGSS.MS-PS4-2

A light bean reflects off a plane mirror at an angle of 50° from the normal as shown in the diagram. Which statement describes the angle of incidence for the light beam?

• the light beam moves through Quadrant A at an angle of 40° from the normal

• the light beam moves through Quadrant B at an angle of 50° from the normal

• the light beam moves through Quadrant A at an angle of 50° from the normal

• the light beam moves through Quadrant

  B at an angle of 40° from the normal

Tags

NGSS.MS-PS4-2

Why does a leaf look green in the summer?

• The leaf uses green light to make food in its cells

• The leaf reflects green light and absorbs other colors of sunlight

• The leaf produces green light in its cells

• The leaf absorbs green light

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Maria was making a drawing showing the different parts of a wave. Which number should she label as the amplitude of the wave?

• 2

• 4

• 1

• 3

Tags

NGSS.MS-PS4-1

When light is bounced off a mirror, the light is

• refracted

• reflected

• diffracted

• absorbed

Tags

NGSS.MS-PS4-2

Which object BEST reflects light?

• white floor

• black sweater

• brown carpet

• gray door

Tags

NGSS.MS-PS4-2