What is the best description of how sound is produced by someone playing a guitar?

When the strings are plucked, air particles vibrate.

The strings produce transverse waves of energy. T

The strings transfer energy from the player's hand.

The player's fingers cause dust to vibrate across the room.

What happens when a violin's strings are plucked?

The plucked string produces sound waves.

Sound waves move in one direction.

Sound waves move through a string.

The string absorbs sound waves.

Logan's voice is pitched lower than Kylie's. Based on this fact, which statement is true?

Logan's vocal cords vibrate at a lower frequency than Kylie's.

Kylie speaks at a higher volume than Logan.

Logan can speak at a higher amplitude than Kylie.

Kylie speaks at a greater range of frequencies than Logan.

What is shown when you place a vibrating tuning fork into a dish of water?

Sound travels as waves through vibrating matter.

What is shown when you place a vibrating tuning fork into a dish of water?

Sound cannot travel through liquid.

Sound is produced at different pitches.

Which BEST describes how a piano can play a wide range of notes?

Different strings in the piano produces different pitches.

The piano produces sounds at different volumes.

The piano produces sounds at different amplitudes.

Different people can play the same notes yet produce different sounds.

A trumpet and a tuba are blown with the same amount of effort. They sound different because...

they produce different pitches.

they have different amplitudes.

they are made of different materials.

What do the curved lines around the ringing clock show?

Sound waves travel outward as the ringing clock causes the air to vibrate.

The sound wave's amplitude changes each time the clock rings.

You must sit near the clock to hear it ring.

The alarm's pitch changes each time the clock rings.

The amplitude of a sound wave is a measure of...

how long a sound wave takes to travel a certain distance.

how many waves are produced in a given amount of time.

how far the listener is from the source of the sound.

The glasses in the picture produce different sounds when someone rubs wet fingers across the rim. Which is the BEST explanation for this?

The different amounts of liquid produces different pitches.

The air does not vibrate across the glasses.

The glasses are made of different materials.

The person playing the glasses does not use the same amount of pressure with each glass.

Which best describes this picture?

The water reflects the image of the mountain.

The mountain is refracted in the water.

A convex lens, like your eye

bends light inward, toward a focal point.

scatters light in many directions.

What is true about white light?

It looks white in any color of light.

You can make a sharp shadow blurry by increasing

the distance from the object to the shadow.

What caused this shadow?

The cat blocks some of the sunlight that hits it.

The ground absorbs all the light in the shape of a cat.

A scientific method is

a set of steps to answer a question

getting permission to do an experiment

the way scientists go to school

a book that tells how to do experiments

Sometimes you can see a rainbow when you look at a sprinkler on a sunny day. Why?

The water droplets separate light.

Reflection occurs when....

light strikes a surface and bounces off.

A boy is plucking a stretched rubber band to make sounds. How can he change the pitch?

Stretch the rubber band more or less tightly.

Pluck the rubber band harder or more softly.

Pluck the rubber band quickly or more slowly.

Move closer or farther away from the rubber band.

How are sound and light ALIKE?

Both are forms of energy that travel as waves.

Both depend on vibrations in the air.

One of the main differences between the outer and inner planets is __________.

the outer planets are gas planets

The inner planets all have water

the inner planets are much bigger than the outer planets

the outer planets have rings, and the inner planets don't

Benchmark Practice Test

Authored by Staci Dombroski

Other Sciences

4th Grade

CCSS covered

Used 102+ times

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64 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The frequency of sound waves determines the

amplitude

energy

pitch

volume

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Two people hear a dog barking. Willie is 5 meter away. Steve is 20 meters away. Which is MOST likely true?

The barking sounds louder to Willie.

The barking sounds louder to Steve.

The pitch of the barking sounds louder to Willie.

The bark's pitch sounds higher to Steve.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What might the woman in the picture be saying?

"Lower the amplitude of your sound wave."

"Lower the frequency of your sound waves."

"Increase the frequency of your sound waves."

"Increase the amplitude of your sound waves."

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is being shown at the top of the sound wave?

amplitude

direction

trough

wavelength

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is true about the sounds in the table?

A librarian's whisper has the highest pitch.

Sound waves from the librarian's whisper travels the farthest distance.

The sound waves from a rock concert has the greatest amplitude.

The sound waves from the heavy Atlanta traffic has a higher pitch than the sound waves from a normal conversation.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Sound waves travel fastest through

air

empty space

solids

liquids

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A scientist in a sound lab is counting the number of crests of sound waves that pass every second. What is she measuring?

amplitude

wave frequency

wave height

wavelength

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