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Waves

Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.

General properties of waves

Subtopic

General properties of waves under Waves for Grade 12 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    In a displacement-distance graph of a progressive wave, what is represented by the distance between a crest and the adjacent trough along the direction of propagation?

    A.

    One full wavelength

    B.

    The amplitude

    C.

    Twice the amplitude

    D.

    Half of a wavelength

  2. 2.

    When a light wave travels from air into a glass block, which property of the wave remains constant?

    A.

    Wavelength

    B.

    Velocity

    C.

    Frequency

    D.

    Amplitude

  3. 3.

    A water wave has a frequency of 25 Hz25\text{ Hz} and a wavelength of 4.0 cm4.0\text{ cm}. What is the speed of the wave?

    A.

    1.0 m/s1.0\text{ m/s}

    B.

    100 m/s100\text{ m/s}

    C.

    6.25 m/s6.25\text{ m/s}

    D.

    0.16 m/s0.16\text{ m/s}

Download the worksheet for Waves - General properties of waves to practice offline. It includes additional chapter-level practice questions.

Light

Subtopic

Light under Waves for Grade 12 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    Which component of the electromagnetic spectrum has the longest wavelength?

    A.

    Radio waves

    B.

    Gamma rays

    C.

    Ultraviolet

    D.

    Visible light

  2. 2.

    When light travels from air into a glass block, what happens to its speed and direction?

    A.

    It speeds up and bends away from the normal

    B.

    It speeds up and bends towards the normal

    C.

    It slows down and bends away from the normal

    D.

    It slows down and bends towards the normal

  3. 3.

    A ray of light strikes a plane mirror as shown in the diagram. According to the law of reflection, what is the relationship between the angle of incidence (ii) and the angle of reflection (rr)?

    A.

    ii is always greater than rr

    B.

    ii is always less than rr

    C.

    ii is equal to rr

    D.

    i+r=180i + r = 180^\circ

Download the worksheet for Waves - Light to practice offline. It includes additional chapter-level practice questions.

Electromagnetic spectrum

Subtopic

Electromagnetic spectrum under Waves for Grade 12 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    In a hospital setting, which part of the electromagnetic spectrum is primarily used to produce images of the internal structure of the body to detect bone fractures?

    A.

    Gamma rays

    B.

    Infrared

    C.

    Microwaves

    D.

    X-rays

  2. 2.

    Which type of electromagnetic radiation is most commonly used in household television remote controls to send signals?

    A.

    Radio waves

    B.

    Ultraviolet

    C.

    Infrared

    D.

    X-rays

  3. 3.

    All electromagnetic waves traveling through a vacuum share which of the following properties?

    A.

    They have the same wavelength.

    B.

    They travel at the same speed of 3×1083 \times 10^8 m/s.

    C.

    They are longitudinal waves.

    D.

    They all have frequencies within the human hearing range.

Download the worksheet for Waves - Electromagnetic spectrum to practice offline. It includes additional chapter-level practice questions.

Sound

Subtopic

Sound under Waves for Grade 12 IGCSE.

About Topic & Revision

Preview questions (no answers)

  1. 1.

    What is the typical approximate range of frequencies audible to a healthy human ear?

    A.

    2 Hz2\text{ Hz} to 2,000 Hz2,000\text{ Hz}

    B.

    20 Hz20\text{ Hz} to 20,000 Hz20,000\text{ Hz}

    C.

    200 Hz200\text{ Hz} to 200,000 Hz200,000\text{ Hz}

    D.

    20,000 Hz20,000\text{ Hz} to 2,000,000 Hz2,000,000\text{ Hz}

  2. 2.

    A sound wave is described as being a longitudinal wave. What does this mean regarding the movement of the particles in the medium?

    A.

    Particles vibrate perpendicular to the direction of wave travel

    B.

    Particles vibrate in a circular motion

    C.

    Particles vibrate parallel to the direction of wave travel

    D.

    Particles do not vibrate but move along with the wave

  3. 3.

    Sound waves travel at different speeds through different states of matter. Which of the following correctly ranks the speed of sound from slowest to fastest?

    A.

    Gas < Liquid < Solid

    B.

    Solid < Liquid < Gas

    C.

    Liquid < Gas < Solid

    D.

    Gas < Solid < Liquid

Download the worksheet for Waves - Sound to practice offline. It includes additional chapter-level practice questions.

Waves - IGCSE Grade 12 Physics Notes & Revision | Krit.club