Forms of Energy-Light and Sound 4th grade science

What happens to light that is absorbed by an object?

• It is bent.

• It bounces back.

• It separates into colors.

• It does not pass through.

Tags

NGSS.MS-PS4-2

Why is there no sound in space?

• It is too far from Earth.

• The temperature is too cold.

• Forces in space are too weak.

• There are no materials to vibrate.

An engineer designed a material used in the doors of a car. The material absorbs sound. What might have been the problem the engineer was solving?

• The driver could not hear sounds down the street.

• People in the car could not hear people outside the car.

• People in the car heard too much noise from outside the car.

• People outside the car could not hear music from inside the car.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Which object separates light into a spectrum?

• a bulb

• a glass

• a mirror

• a prism

Why does a sunflower petal look yellow?

• It bends yellow light.

• It reflects yellow light.

• It absorbs yellow light.

• It produces yellow light.

How does increasing the thickness of a harp string affect the sound it makes?

• It makes the sound softer.

• It makes the sound louder.

• It causes the sound to have a lower pitch.

• It causes the sound to have a higher pitch.

Tags

NGSS.MS-PS4-1

Which of these materials is translucent?

• wood

• metal

• pure water

• waxed paper

Tags

NGSS.MS-PS4-2

How can you increase the brightness of a light source?

• by decreasing its intensity

• by moving it closer to you

• by passing it through glass

• by blocking some of its light

Tags

NGSS.MS-PS4-2

Which tool helps you hear sound over longer distances?

• drum

• guitar

• flashlight

• microphone

How does increasing the force exerted on a vibrating object affect the sound it makes?

• It makes the pitch lower.

• It makes the pitch higher.

• It makes the sound softer.

• It makes the sound louder.

Tags

NGSS.MS-PS4-1