Back to the lesson and practice
ActivityPractice worksheet
Do it🖨️ On paper✏️ On screen
New copyMake a new one

Works with a finger, a stylus or a mouse. Nothing is saved or sent anywhere.

Write your answers with a finger, mouse or stylus. Switch to Scroll to move around the page. A stylus always writes.

eurekami

9th grade light, sound and waves

9th grade (Year 10 in England) · 15 questions · Common Core: NGSS.HS-PS4-1, NGSS.HS-PS4-3, NGSS.HS-PS4-4, NGSS.HS-PS4-5 · England: KS4 Combined Science: Waves in matter, KS4 Combined Science: Light and electromagnetic waves, GCSE Combined Science: Waves (Physics only: period)

Name

Date

Score/ 15

  1. Question 1

    A sound wave has a period of 0.004 s and travels at 340 m/s. What is its wavelength, in m? (v = f λ)

    Answerm

  2. Question 2

    A wave has a frequency of 50 Hz and a wavelength of 0.5 m. What is its speed, in m/s?

    Answerm/s

  3. Question 3

    A wave has a frequency of 25 Hz. What is its period, in seconds?

    Answers

  4. Question 4

    A wave has a frequency of 20 Hz. What is its period (the time for one wave), in seconds?

    Answers

  5. Question 5

    Which type of electromagnetic wave is used for treating some cancers?

    • A. infrared
    • B. radio waves
    • C. ultraviolet
    • D. gamma rays

  6. Question 6

    One complete vibration takes 0.002 s. What is the frequency, in Hz?

    AnswerHz

  7. Question 7

    The electromagnetic spectrum: which statement is NOT true?

    • A. All electromagnetic waves travel at the same speed in a vacuum.
    • B. Ultraviolet can damage skin cells and cause sunburn.
    • C. Electromagnetic waves need a material to travel through.
    • D. Visible light is only a small part of the electromagnetic spectrum.

  8. Question 8

    Sound travels at 340 m/s in air. What is the wavelength of a 170 Hz sound, in metres?

    Answerm

  9. Question 9

    A sound wave has a period of 0.005 s and travels at 1500 m/s. What is its wavelength, in m? (v = f λ)

    Answerm

  10. Question 10

    A wave has a frequency of 100 Hz and a wavelength of 4 m. What is its speed, in m/s?

    Answerm/s

  11. Question 11

    A wave has a frequency of 10 Hz. What is its period, in seconds?

    Answers

  12. Question 12

    A wave has a frequency of 25 Hz. What is its period (the time for one wave), in seconds?

    Answers

  13. Question 13

    Which type of electromagnetic wave is used for imaging broken bones?

    • A. radio waves
    • B. ultraviolet
    • C. microwaves
    • D. X-rays

  14. Question 14

    One complete vibration takes 0.02 s. What is the frequency, in Hz?

    AnswerHz

  15. Question 15

    The electromagnetic spectrum: which statement is NOT true?

    • A. Electromagnetic waves are transverse.
    • B. Radio waves are a type of sound.
    • C. Ultraviolet can damage skin cells and cause sunburn.
    • D. All electromagnetic waves travel at the same speed in a vacuum.

Write your answers right on the page. · Free from eurekami.com

All done? Check your answers
  1. 1.36 m
  2. 25 m/s
  3. 0.04 s
  4. 0.05 s
  5. gamma rays
  6. 500 Hz
  7. Electromagnetic waves need a material to travel through.
  8. 2 m
  9. 7.5 m
  10. 400 m/s
  11. 0.1 s
  12. 0.04 s
  13. X-rays
  14. 50 Hz
  15. Radio waves are a type of sound.