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Pearson Edexcel International GCSE (9–1) · PHYSICS · Section

Waves the electromagnetic spectrum

16 practice questions

Start practising (16 questions)

Practice questions

11–16 of 16

  1. Question 11

    3 marks · Normal

    Fill in the missing boxes in the table to correctly order the following electromagnetic waves by increasing frequency. Start with the lowest frequency.

    Order (1 = lowest frequency)Wave type
    1Radio waves
    2?
    3Visible light
    4?
    5Gamma rays
    Answer and see the solution →

  2. Question 12

    3 marks · Normal

    The wavelength of a red light wave is m. Calculate the frequency of this light.

    (The speed of light in a vacuum is m/s.)

    Answer and see the solution →

  3. Question 13

    2 marks · Normal

    Explain why gamma rays and X-rays are placed at the same end of the electromagnetic spectrum.

    Answer and see the solution →

  4. Question 14

    4 marks · Normal

    The diagram below represents the electromagnetic spectrum, but some wave types are missing.

    Some wave types have been omitted from the spectrum.
    Wave type Relative position (increasing frequency)
    Radio waves1
    -2
    Visible light3
    -4
    Gamma rays5
    (a)

    Name the wave type that should be in position 2.

    [1 mark]
    (b)

    Name the wave type that should be in position 4.

    [1 mark]
    (c)

    State whether the wavelength of the wave in position 2 is longer or shorter than that of visible light.

    [1 mark]
    (d)

    State one use of the wave type in position 4.

    [1 mark]
    Answer and see the solution →

  5. Question 15

    3 marks · Normal

    Describe how the frequency and wavelength change as you move from radio waves to gamma rays across the electromagnetic spectrum.

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  6. Question 16

    4 marks · Normal

    A student reads that all electromagnetic waves can be reflected and refracted. They want to investigate this for light.

    Describe a laboratory experiment the student could perform to demonstrate the reflection and refraction of visible light, mentioning the main pieces of apparatus required.

    (a)

    State the apparatus the student would need.

    [1 mark]
    (b)

    Describe the procedure for demonstrating reflection.

    [1 mark]
    (c)

    Describe the procedure for demonstrating refraction.

    [1 mark]
    (d)

    State one observation the student could make in either part.

    [1 mark]
    Answer and see the solution →