Unit 3: Light and Sound Summative

You are walking through your bedroom one evening with the lights off. You bump your toe on the end of the bed. Which best explains why you walked into the bed?

• We need light to see the things around us.

• The bed jumped out at you.

• You had your eyes closed.

Kayla and her family are going camping and they want to read bedtime stories. Choose the light source that would be best for Kayla and her family to use to see the stories when it gets dark outside.

• Sun

• Flashlight

• Star

Tags

NGSS.4-PS3-2

NGSS.4-PS4-2

Which question helps to identify if an object is a light source? (AKS 3b)

• What color is it?

• Does it make light?

• Where did it come from?

Tags

NGSS.4-PS4-2

You are using a flashlight to make shadows with your hand. Which of the following would you observe?

• When your hand moves closer to the flashlight, the shadow appears smaller.

• When your hand moves closer to the flashlight, the shadow appears larger.

• When your hand moves closer to the flashlight, the shadow disappears.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Use the information to answer the following question. It is daytime and you look behind you. You see your shadow. Now it is nighttime and when you look behind yourself you don’t see your shadow. (AKS 3c) Which of the following is the BEST reason that you don’t see your shadow at nighttime?

• Your shadow ran away.

• Light is required to see a shadow

• Your shadow went to bed because it was tired.

Tags

NGSS.4-PS4-2

A student is investigating sound. He wants to find out if sound waves can make materials vibrate. Which of the following is the BEST way to conduct his investigation?

• turn on the radio

• blow a whistle and watch the air move

• pluck a guitar string and watch it move

Tags

NGSS.MS-PS4-2

Use the scenario to answer the following question. A student wanted to know if the sound from his TV was bothering the fish in his fish tank. He thought that the fish tank might be too close to the TV. He wondered if he should move it to another side of his room. How could the student investigate if the sound from the TV is vibrating the water in the fish tank? (AKS 3e)

• The student can put a book next to the fish tank to see if it makes a sound.

• The student can turn the TV on and see if the water vibrates.

• The student can cover the fishbowl with a plate.

Tags

NGSS.MS-PS4-2

A student wants to make the sand move on the table without touching it. She wants to use sound waves to make it move. What could she do to make it move?

• She could pour water on the sand.

• She could lift the table and shake it.

• She could play music loudly next to it.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A student is playing the guitar. She strums the strings of the guitar while she plays a song. Which of the following explains what happens when the student strums the guitar strings?

• When she moves the strings, they vibrate and do not make a sound.

• When she moves the strings, they vibrate to make a sound.

• When she moves the strings, the strings light up.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which of the following is a device that uses light and sound as an emergency alert?

• stop sign

• traffic light

• firetruck