Sound
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Éléments de cette leçon
Slide 1 - Diapositive
Label the diagram.
Crest
Amplitude
Wavelength
Trough
Slide 2 - Question de remorquage
Match the keywords to the definitions.
The top of the wave.
The bottom of the wave.
The distance between the same point on neighbouring waves.
The distance between the middle of the wave and the top or bottom.
Peak
Trough
Amplitude
Wavelength
Slide 3 - Question de remorquage
What is the unit of frequency?
A
Watts (W)
B
Hertz (Hz)
C
Joules (J)
D
Meters per second (m/s)
Slide 4 - Quiz
Slide 5 - Vidéo
Slide 6 - Diapositive
Slide 7 - Diapositive
Slide 8 - Diapositive
Slide 9 - Diapositive
Which wave is a longitudinal wave?
A
A
B
B
Slide 10 - Quiz
What type of wave is this?
A
Transverse
B
Longitudinal
Slide 11 - Quiz
What type of wave is this?
A
Transverse
B
Longitudinal
Slide 12 - Quiz
What type of wave is this?
A
Transverse
B
Longitudinal
Slide 13 - Quiz
This type of wave vibrates perpendicular to the direction it travels.
A
Longitudinal
B
Transverse
C
Both
Slide 14 - Quiz
This type of wave transfers energy.
A
Longitudinal
B
Transverse
C
Both
Slide 15 - Quiz
Sound is a .......... wave.
A
Longitudinal
B
Transverse
C
Both
Slide 16 - Quiz
Light is a ........... wave
A
Longitudinal
B
Transverse
C
Both
Slide 17 - Quiz
Fill the gaps.
In a transverse wave the vibrations are ............................ to the direction the wave travels.
In a longitudinal wave the vibrations are ............................ to the direction the wave travels.
Perpendicular
Parallel
Slide 18 - Question de remorquage
Sort the statements.
Transverse waves
Both
Longitudinal waves
Transfer energy
Involve vibrating particles
Light waves
Sound waves
Vibrate parallel to direction of energy transfer.
Vibrate perpendicular to direction of energy transfer.
Slide 19 - Question de remorquage
Slide 20 - Diapositive
Slide 21 - Diapositive
Which box shows a vacuum?
A
A
B
B
Slide 22 - Quiz
Match the keywords to the diagrams.
Solid
Liquid
Gas
Vacuum
Slide 23 - Question de remorquage
Why does the film alien use the tag line, 'in space no one can hear you scream'?
Slide 24 - Question ouverte
Sound waves must travel through a medium. What is the medium here?
Slide 25 - Question ouverte
Sound waves must travel through a medium. What is the medium here?
Slide 26 - Question ouverte
Tin can telephones can communicate short distances. What is the medium here?
Slide 27 - Question ouverte
Earthquakes can transfer huge amounts of energy. What is the medium?
Slide 28 - Question ouverte
Match the keywords to the definitions.
The distance that particles move when a sound wave passes.
Vibrations passing through a solid, liquid or a gas.
The number of waves per second.
A substance (solid, liquid or gas).
Amplitude
Frequency
Medium
Sound wave
Slide 29 - Question de remorquage
Slide 30 - Vidéo
Slide 31 - Diapositive
Slide 32 - Diapositive
What do you experience first?
First you...
Then you...
See the lightening.
Hear the thunder.
Slide 33 - Question de remorquage
Why do see lightening before you hear thunder?
Slide 34 - Question ouverte
Why does sound travel slower in a gas than in a solid?
