Lesson 3.3.1.2

3.3.1.2 Longitudinal and transverse waves Quiz: AQA Physics, Unit 3

20 questions

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Lesson 3.3.1.2, Longitudinal and transverse waves: 20 multiple choice questions for the AQA Physics (7408), Unit 3: Waves, written with Revision Ninja.

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The 20 questions

  1. In a transverse wave, the displacement of particles is in which direction relative to energy transfer?

    • perpendicular to the direction of energy transfer
    • parallel to the direction of energy transfer
    • in circles about a fixed point
    • there is no displacement
  2. In a longitudinal wave, the displacement of particles is in which direction relative to energy transfer?

    • parallel to the direction of energy transfer
    • in circles about a fixed point
    • in random directions
    • perpendicular to the direction of energy transfer
  3. Which of these is a longitudinal wave?

    • sound
    • light
    • radio waves
    • waves on a string
  4. Which of these is a transverse wave?

    • light
    • ultrasound
    • compression waves in a spring
    • sound in air
  5. What is the speed of all electromagnetic waves in a vacuum?

    • 3.0 × 10^6 m/s
    • 3.0 × 10^8 m/s
    • 340 m/s
    • 1.5 × 10^8 m/s
  6. What does the polarisation of a wave provide evidence for?

    • That the wave is a particle
    • That the wave is stationary
    • That the wave is longitudinal
    • That the wave is transverse
  7. Why are aerials aligned with each other for transmission and reception?

    • To increase the speed of the wave
    • To reduce the wavelength of the wave
    • To change the frequency of the wave
    • To match the plane of polarisation of the wave
  8. In a sound wave in air, how do the air particles move?

    • They do not move at all
    • Up and down at right angles to travel
    • Back and forth along the direction the wave travels
    • In circles about fixed points
  9. Unpolarised light of intensity I0 passes through an ideal polariser. What is the transmitted intensity?

    • I0/4
    • zero
    • I0
    • I0/2
  10. Polarised light passes through two polarisers whose axes are crossed at 90 degrees. What is the transmitted intensity?

    • I0/2
    • I0/4
    • zero
    • I0
  11. Which electromagnetic wave has the longest wavelength?

    • microwaves
    • gamma rays
    • radio waves
    • X-rays
  12. In an electromagnetic wave, how are the electric and magnetic fields oriented?

    • Parallel to each other
    • Perpendicular to each other and to the direction of travel
    • Parallel to the direction of travel only
    • Perpendicular to each other but parallel to travel
  13. Why can sound not be polarised?

    • Sound has no amplitude
    • Its particles oscillate along the direction of travel, so there is no transverse plane to align
    • Sound has no frequency
    • Sound travels too slowly
  14. A vertically polarised transmitted wave is received by a horizontal aerial. What is the result?

    • A signal of double strength
    • A maximum signal
    • A very weak or no signal
    • A signal with doubled frequency
  15. Why does sound require a medium to travel?

    • Particles must be compressed and rarefied to carry the wave
    • Field lines must be present
    • The frequency must be zero
    • Electric charge must move through the air
  16. A wave travels to the right while a particle moves up and down. What type of wave is it?

    • transverse
    • stationary
    • longitudinal
    • compression
  17. Ultrasound travelling through body tissue is which type of wave?

    • polarised
    • electromagnetic
    • transverse
    • longitudinal
  18. Which statement about electromagnetic waves is correct?

    • They are longitudinal and need a medium
    • They are transverse and can travel through a vacuum
    • They are longitudinal and travel through a vacuum
    • They are transverse and need a medium
  19. Which of these can be polarised?

    • light
    • compression waves in a spring
    • ultrasound
    • sound
  20. What type of wave is a compression wave travelling along a slinky?

    • stationary
    • transverse
    • polarised
    • longitudinal

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