10 questions🇬🇧English
🔊 Sound & Hearing – Year 7
Physics · Year 7 (KS3) — vibrations, pitch, loudness, echoes and how the ear detects sound
Make it your own private quiz and change anything you like
Questions
What must happen for any sound to be made?
Something must become magnetic
Something must vibrate
Something must give out light
Something must get hot
20s
Astronauts on a spacewalk cannot hear each other shout. Why can't sound travel through space?
There are no particles to pass on vibrations
Gravity is too weak in space
It is far too cold in space
Sound moves too fast to be heard
20s
Which unit is used to measure the frequency of a sound?
Newton (N)
Hertz (Hz)
Decibel (dB)
Metre per second (m/s)
20s
Through which of these materials does sound travel fastest?
Air
Oxygen
Steel
Water
20s
The amplitude of a sound wave is increased. How does the sound change?
It becomes louder
It becomes quieter
It becomes higher pitched
It becomes lower pitched
20s
A guitar string is tightened so it vibrates more times each second. How does its sound change?
It has a lower pitch
It has a higher pitch
It becomes quieter
It becomes louder
30s
Ultrasound is used for scanning babies before birth. What is ultrasound?
Sound between 20 Hz and 20,000 Hz
Sound louder than 120 decibels
Sound above 20,000 Hz
Sound below 20 Hz
30s
Sound is a longitudinal wave. What does this mean about how the particles vibrate?
Only upwards and downwards
At right angles to the direction of travel
In circles around the direction of travel
Parallel to the direction the wave travels
30s
Which part of the ear turns vibrations into electrical signals that travel to the brain?
The cochlea
The ear canal
The ossicles
The eardrum
30s
You shout at a cliff and hear the echo 2 seconds later. Sound travels at 340 m/s. How far away is the cliff?
680 m
340 m
1360 m
170 m
60s