Lesson 1 Waves (Kerboodle Pages 124-125)
What is a wave?
What is the amplitude of a wave?
What is the frequency of a wave?
What is the wavelength?
What is the top of a wave called?
What is the bottom of a wave called?
What does a diagram of a transverse wave look
like?
An oscillation or vibration that transfers energy
or information.
The distance from the middle to the bottom of
a wave.
The number of waves that travel past a point
every second.
The distance from the top of one wave to the
top of the next one.
Peak (or crest)
Trough
What does a diagram of a longitudinal wave
look like?
In a longitudinal wave, what is the area called
Compression
where waves are close together?
In a longitudinal wave, what is the area called
Rarefaction
where waves are spread apart?
What is the term for when a wave bounces off
Reflection
a surface?
The wave travelling towards a surface is called
Incident wave
the…
The wave travelling away from a surface after
Reflected wave
reflection is called the…
What is the term for when two waves add
Superposition
together?
Lesson 2 Sound & Energy Transfer (Kerboodle Pages 126-127)
What causes sound waves?
Vibrations
What does sound travel through?
A medium
Sound cannot travel an area with no particles.
A vacuum
What do we call this area?
The speed of sound in air is…
340 m/s
Sound travels quickest in which medium?
Solid
Sound travels slowest in which medium?
Gas
Which is faster, light or sound?
Light
Lesson 3 Loudness and Pitch (Kerboodle Pages 128-129)
A machine that can detect sound waves is
Microphone
called a…
The equipment we use to show a sound wave
Oscilloscope
on a screen is called an…
When you increase the frequency of a wave
Pitch
you increase the…
What is the units of frequency?
Hertz (Hz)
Year 7 Sound
What do we call the range of frequency we can Audible range
hear?
What do we call sound with a frequency below Infrasound
20 Hz?
What do we call sound with a frequency above Ultrasound
20,000 Hz?
Lesson 4 Detecting Sound (Kerboodle Pages 130-131)
Label the parts of the ear
What are the units for loudness?
Decibels (dB)
What is the name of the instrument used to
Amplifier
make sound louder?
Lesson 5 Echoes & Ultrasound (Kerboodle Pages 132-133)
What is the term for when sound reflects off a
Echo
surface?
What is the mathematical formula for
𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑𝑑
calculating speed?
𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠𝑠 =
𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡
Name two medical uses for ultrasound
Name a use for ultrasound on a ship
Year 7 Sound
1. Imaging unborn babies in pregnant women
2. In physiotherapy to treat tendon injuries
Sonar