Sound waves are also known as ----- waves.

Both longitudinal and compression

The speed of sound depends on these two things:

The type of medium and the temperature of the medium

Speed of the medium and temperature of the medium

Temperature of the medium and sound of the medium

Why is sound able to travel faster through a solid than a gas?

Solid molecules are packed tightly.

Gas molecules are packed tightly.

Sound does not travel faster through a solid than a gas.

Tuning forks are used

show how vibrations produce sound

A student ties two strings of the same lengths and thicknesses between two stands, as shown. When the student plucks the strings, string 2 produces sound with a pitch higher than string 1. What explains the differences in pitch?

Increasing tension in the string makes it vibrate faster, producing a higher pitch sound.

A slack string vibrates slower, producing a lower volume sound.

A firm string spreads vibrations faster throughout the string, producing a lower pitch.

Decreasing tension in the string spreads vibrations slower, increasing the loudness.

Which statement about sound is TRUE?

Sound moves better through some materials than others.

Sound cannot move through water.

Sound can travel through empty space.

Sound cannot move from one material to another.

Which describes a convex lens?

thicker in the middle than on the edges

thicker on the edges than in the middle

When light waves move from passing through air to passing through a glass lens when happens to them?

They slow down and change direction

They speed up and change direction

They maintain the same speed and change direction

They maintain their same speed and direction

How does a concave lens differ from a convex lens?

A convex lens has a thick center and thin edges, a concave lens has a thin center and thicker edges

A convex lens is another way to describe a plane mirror; a concave lens is curved

A concave lens is curved inward on both sides; a convex lens is on only one side

A convex lens has a thin center and thick edges. a concave lens has a thick center and thinner edges

is produced by real rays and can be projected on a screen

is produced by virtual rays and can be projected on a screen

is produced by real rays and cannot be projected on a screen

is produced by virtual images and cannot be projected on a screen

Yr9 waves

Authored by William O'Callaghan

Physics

9th Grade

NGSS covered

Used 17+ times

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145 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The number of wavelengths that pass a point each second

frequency

wavelength

pitch

amplitude

Tags

NGSS.HS-PS4-1

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Material (matter) through which a wave travels

medium

Doppler Effect

sound

pitch

Tags

NGSS.MS-PS4-2

MULTIPLE CHOICE QUESTION

5 mins • 12 pts

A wave in which the vibration is in the same direction as that in which the wave is traveling; sound waves

longitudinal wave

ocean wave

transverse wave

mechanical wave

MULTIPLE CHOICE QUESTION

3 mins • 12 pts

The part of a longitudinal wave where the particles of the medium are close together.

rarefaction

compression

crest

trough

MULTIPLE CHOICE QUESTION

3 mins • 12 pts

A part in a longitudinal wave where the particles are spread apart

compression

rarefaction

crest

trough

MULTIPLE CHOICE QUESTION

5 mins • 12 pts

A reflected sound wave

frequency

pitch

echo

rarefaction

Tags

NGSS.MS-PS4-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What type of energy does a sound wave have?

Mechanical

Radiant

Electrical

Sound

Tags

NGSS.MS-PS4-1

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Yr9 waves

The number of wavelengths that pass a point each second

Material (matter) through which a wave travels

A wave in which the vibration is in the same direction as that in which the wave is traveling; sound waves

The part of a longitudinal wave where the particles of the medium are close together.

A part in a longitudinal wave where the particles are spread apart

A reflected sound wave

What type of energy does a sound wave have?

Sound is produced by -----

True or False: Sound needs a medium.

Sound waves are also known as ----- waves.

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