Sound

Question 0

Waves

Answer 0

Waves are vibrations that transfer energy from place to place

Question 1

What is sound?

Answer 1

Sound is a type of energy
Something has to move for sound to exist
All sound is caused by vibrations
Sound travels is waves

Question 2

What can sound travel through?

Answer 2

Sound can travel through solids liquids and gases

Sound can travel through air and water

Question 3

How is sound produced?

Answer 3

When an object vibrates it causes movement in the air particles
Particles bump into each other cussing vibrations
The vibrations keep going until they run out of energy.

Question 4

Wavelength

Answer 4

Distance between two neighbouring crests or troughs of a wave
This is the distance between two particles vibrating in step

Question 5

Amplitude

Answer 5

The maximum distance that a particle moves from its u disturbed position

Question 6

Frequency

Answer 6

The number of times a sound wave repeats in a second

Question 7

Pitch

Answer 7

The highness or lowness of a sound

Question 8

High pitch

Answer 8

High pitch sounds have a low frequency, that means their sound waves vibrate quickly

Question 9

Low pitch

Answer 9

Low pitch sounds have a low frequency, fewer waves per second

Question 10

Difference between compression and rarefraction

Answer 10

Compression are closer together, and rarefaction are father apart

Question 11

Pitch is determined by

Answer 11

The frequency of a sound

Question 12

The frequency of a sound determines

Answer 12

It’s pitch

Question 13

What type of wave does sound travel

Answer 13

Sound is transmitted as a compression wave

Question 14

Sound mediums

Answer 14

Sound can travel through a medium that contains particles that can be forced closer together or gather apart

Question 15

Sound can’t be transmitted

Answer 15

Sound cannot be transmitted in a vacuum because there are no particles to push closer together or spread out

Question 16

Speed of sound

Answer 16

The speed of sound depends on how close the particles are to each other and how easy they are to push closer together.

Question 17

Speed of sound in liquids and solids

Answer 17

The speed of sound in liquids and solids is much greater because the particles are more closely bound together.

Question 18

Order of speed in solids liquids and gases

Answer 18

Speed is generally faster in solids, then liquids, and slowest in gases

Question 19

Transverse waves

Answer 19

Moving particles in a transverse wave travel at right angles in the direction of energy transfer

Question 20

Compression waves

Answer 20

The moving particles move backwards and forwards in the same direction as the energy transfer