Year 10 in England

9th grade light, sound and waves

3 9th grade light, sound and waves skills, each with a worked example, free practice that checks every answer, and a printable worksheet. Start with a mixed review, or jump to the skill you need.

Mixed review

Ten questions drawn from every skill below.

Print a review worksheet Riddle puzzle on screen Bingo

Wave speed = frequency × wavelength

CCSS NGSS.HS-PS4-1England: KS4 Combined Science: Waves in matter

Example

A wave has a frequency of 10 Hz and a wavelength of 4 m. What is its speed, in m/s?

v = 10 × 4 = 40
So the answer is: 40 m/s

Answer: 40 m/s

Builds on: Parts of a wave

Leads to: The electromagnetic spectrum, Period and frequency (T = 1 / f)

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The electromagnetic spectrum

CCSS NGSS.HS-PS4-3CCSS NGSS.HS-PS4-4CCSS NGSS.HS-PS4-5England: KS4 Combined Science: Light and electromagnetic waves

Example

Which type of electromagnetic wave is used for airport baggage scanners?

X-rays pass through soft tissue but not bone.
So the answer is: X-rays

Answer: X-rays

Builds on: Wave speed = frequency × wavelength, Colour, prisms and refraction

Leads to: The expanding universe and the Big Bang

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Period and frequency (T = 1 / f)

CCSS NGSS.HS-PS4-1England: GCSE Combined Science: Waves (Physics only: period)

Example

A wave has a frequency of 5 Hz. What is its period, in seconds?

1 ÷ 5 = 0.2
So the answer is: 0.2 s

Answer: 0.2 s

Builds on: Wave speed = frequency × wavelength

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