the loudness or softness of a sound

the number of vibrations per second

Why does a straw look broken when you put it in a cup of water?

The colors are being separated.

If you are in a dark room, which source of light will appear the brightest to you?

A candle on the table in front of you

A flashlight shining down the hallway

What happens during refraction of light as it passes through a prism?

Light bends and separates into individual colors.

Different colors of light combine into white light.

All the colors of light bend in the same way.

All of the light bounces off the prism.

Why does light bend when it travels through a different medium?

Light changes speed when it passes through a different medium.

Light is reflected when it passes through a different medium.

Light is absorbed when it passes through a different medium.

Light changes to heat when it passes through a different medium.

A guitarist strums two strings of the same thickness on a guitar. The first string vibrates more quickly than the second string. What is true about the pitch of the strings?

The first string has a higher pitch than the second string.

The first string and the second string have the same pitch.

The pitch of the second string depends on the pitch of the first string.

The second string has a higher pitch than the first string.

Why does a megaphone make it easier to hear sound?

Like a funnel, it focuses the sound waves in a direction so that the sound waves are scattered in fewer directions.

It is a cone, and just like ice cream cones, people get louder around it!

It makes the energy get bigger.

This is false; megaphones do not help us to hear.

We see a red t-shirt because . . .

Red light is reflected and the other colours are absorbed.

Red light is absorbed and the other colours are reflected.

Like stop signs, red means stop, and the red light stops at our eye.

Check all that apply. Light and Sound . . .

both travel in waves, but only sound needs a medium to travel through, and both are affected by frequency (the number of times the crest of a wave passes a point).

both travel in waves, and need a medium to travel through, and both are affected by frequency (the number of times the crest of a wave passes a point).

travel at different speeds, with sound being many times faster

both travel in photons, and need a medium to travel through, and both are affected by frequency (the number of times the crest of a wave passes a point).

Freysguys Grade 4 Light and Sound

Authored by Michael Frey

Science

4th Grade

NGSS covered

Used 376+ times

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40 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

_________ is a form of energy that travels through the air.

sound

volume

energy

wave

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

___________ is made when something vibrates

light

sound

drum

pounding

Tags

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The volume of a sound is measured in units called ________

decibels

liters

sound waves

inches per minute

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sound travels through the air as waves.

True

False

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A sound that bounces off a surface is called an ________.

loud sound

echo

repeat

quiet sound

Tags

NGSS.MS-PS4-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Matter that carries sound waves is called a _________

low

high

medium

surface

Tags

NGSS.4-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The ______ of a sound depends on the medium through which it's moving.

pitch

vibration

speed

sound

Tags

NGSS.MS-PS4-2

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Freysguys Grade 4 Light and Sound

_________ is a form of energy that travels through the air.

___________ is made when something vibrates

The volume of a sound is measured in units called ________

Sound travels through the air as waves.

A sound that bounces off a surface is called an ________.

Matter that carries sound waves is called a _________

The ______ of a sound depends on the medium through which it's moving.

the number of vibrations per second

how high or low a sound is

the loudness of a sound

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