Sound and Light questions

By Interwoven Maths

Sound and Light question collection

Review Sound and Light questions for Physics, with correct answers shown and coverage across what do waves transfer between places; choosing which word describes the distance between successive crests on a wave; frequency is measured in which units.

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Question 1

What do waves transfer between places?
  1. Energy
  2. Matter
  3. Charge
  4. Temperature

Question 2

Which word describes the distance between successive crests on a wave?
  1. Wavelength
  2. Amplitude
  3. Frequency
  4. Period

Question 3

Frequency is measured in which units?
  1. Hertz (Hz)
  2. Metres per second (m/s)
  3. Newtons (N)
  4. Watts (W)

Question 4

What is amplitude?
  1. Maximum displacement
  2. Distance between crests
  3. Waves per second
  4. Time per wave

Question 5

Which wave has compressions and rarefactions?
  1. Longitudinal
  2. Transverse
  3. Standing
  4. Electromagnetic

Question 6

How are water-surface ripples modelled at KS3?
  1. Transverse
  2. Longitudinal
  3. Electromagnetic
  4. Standing

Question 7

Which equation links wave speed \(v\), frequency \(f\) and wavelength \(\lambda\)?
  1. \(v = f\lambda\)
  2. \(v = f + \lambda\)
  3. \(v = \frac{f}{\lambda}\)
  4. \(v = \frac{\lambda}{f}\)

Question 8

At constant speed, frequency doubles. What happens to wavelength?
  1. It halves
  2. It doubles
  3. It quadruples
  4. It stays the same

Question 9

A wave has \(f=5\,\mathrm{Hz}\) and \(\lambda=2\,\mathrm{m}\). What is its speed?
  1. \(10\,\mathrm{m/s}\)
  2. \(2.5\,\mathrm{m/s}\)
  3. \(7\,\mathrm{m/s}\)
  4. \(0.4\,\mathrm{m/s}\)

Question 10

Which ultrasound behaviour creates a medical image?
  1. Reflection at tissue boundaries
  2. Absorption by all tissue
  3. Refraction into straight paths
  4. Diffraction from the skin

Question 11

Two waves of amplitude \(A\) meet in phase. Combined amplitude?
  1. \(2A\)
  2. \(A\)
  3. \(A/2\)
  4. \(0\)

Question 12

At a plane mirror, how do incidence \(i\) and reflection \(r\) compare?
  1. \(i=r\)
  2. \(r=2i\)
  3. \(i=2r\)
  4. \(i+r=90^\circ\)

Question 13

Why does refraction occur when a wave enters a new medium?
  1. Its speed changes
  2. Its frequency changes
  3. Its amplitude changes
  4. Its energy changes

Question 14

What is the name for a wave transferring energy into a material and heating it?
  1. Absorption
  2. Reflection
  3. Refraction
  4. Transmission

Question 15

Which wave requires a material medium?
  1. Sound
  2. Visible light
  3. Radio
  4. Infrared

Question 16

Which technology uses waves to measure depth underwater?
  1. Sonar (ultrasound)
  2. Radar (radio waves)
  3. MRI (magnetic fields)
  4. Thermography (infrared)

Question 17

What do you call the reflection of sound from a surface that returns to the source?
  1. An echo
  2. A shadow
  3. A refraction
  4. A diffraction

Question 18

Which property of a sound wave determines its pitch?
  1. Frequency
  2. Amplitude
  3. Wavelength
  4. Energy

Question 19

Which store usually increases when a material absorbs sound?
  1. Thermal
  2. Chemical
  3. Gravitational potential
  4. Electrostatic

Question 20

Where is a plane-mirror image formed?
  1. Same distance behind the mirror
  2. Same distance in front
  3. At the mirror surface
  4. Twice as far behind

Question 21

Which wave property is directly linked to the energy carried by each pulse?
  1. Amplitude
  2. Frequency
  3. Wavelength
  4. Period

Question 22

What is the period of a wave?
  1. The time for one complete wave
  2. The distance between crests
  3. The maximum displacement
  4. The number of waves per second

Question 23

Which property of a sound wave determines volume?
  1. Amplitude
  2. Frequency
  3. Wave speed
  4. Period

Question 24

What happens when waves meet a barrier and bounce back?
  1. The waves are reflected
  2. The waves are refracted
  3. The waves are absorbed
  4. The waves are diffracted

Question 25

Why do objects look coloured?
  1. They reflect some wavelengths of light
  2. They absorb all wavelengths of light
  3. They transmit all wavelengths of light
  4. They emit light at the same wavelength

Question 26

Which colour has the longest wavelength in visible light?
  1. Red
  2. Violet
  3. Blue
  4. Green

Question 27

Which description is diffraction?
  1. Spreading after a gap or edge
  2. Changing direction at a boundary
  3. Bouncing from a surface
  4. Transferring energy to a material

Question 28

A wave slows to half speed in a new medium. Its frequency...
  1. Stays the same
  2. Doubles
  3. Halves
  4. Quadruples

Question 29

Which property makes soft porous material effective soundproofing?
  1. High sound absorption
  2. High sound reflection
  3. High sound transmission
  4. Strong resonant amplification

Question 30

A wave has frequency \(4\,\mathrm{Hz}\). What is its period?
  1. \(0.25\,\mathrm{s}\)
  2. \(4\,\mathrm{s}\)
  3. \(0.5\,\mathrm{s}\)
  4. \(16\,\mathrm{s}\)

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Review Sound and Light questions for Physics, with correct answers shown and coverage across what do waves transfer between places; choosing which word describes the distance between successive crests on a wave; frequency is measured in which units.

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