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

Speed of sound and echoes

7th grade (Year 8 in England) · 16 questions · Common Core: NGSS.MS-PS4-1 · England: KS3 Physics: Waves (sound waves)

Name

Date

Score/ 16

  1. Question 1

    How do bats find insects in the dark?

    • A. They send out high-pitched sounds and listen for echoes
    • B. They use magnets
    • C. They smell them from far away
    • D. They glow

  2. Question 2

    You shout towards a cliff and hear the echo 3 s later. Sound travels at 340 m/s. How far away is the cliff, in metres?

    Answerm

  3. Question 3

    You see lightning and hear the thunder 4 seconds later. Sound travels at about 340 m/s. About how far away is the storm, in metres?

    Answerm

  4. Question 4

    In which material does sound travel fastest?

    • A. steel
    • B. a vacuum
    • C. water
    • D. air

  5. Question 5

    You shout towards a cliff and hear the echo 3 s later. Sound travels at 340 m/s. How far away is the cliff, in metres?

    Answerm

  6. Question 6

    You see lightning and hear the thunder 5 seconds later. Sound travels at about 340 m/s. About how far away is the storm, in metres?

    Answerm

  7. Question 7

    How do bats find insects in the dark?

    • A. They send out high-pitched sounds and listen for echoes
    • B. They smell them from far away
    • C. They use magnets
    • D. They glow

  8. Question 8

    You shout towards a cliff and hear the echo 1 s later. Sound travels at 340 m/s. How far away is the cliff, in metres?

    Answerm

  9. Question 9

    You see lightning and hear the thunder 3 seconds later. Sound travels at about 340 m/s. About how far away is the storm, in metres?

    Answerm

  10. Question 10

    Why do you see lightning before you hear thunder?

    • A. Thunder is made later
    • B. Your eyes are faster than your ears
    • C. Sound travels faster than light
    • D. Light travels much faster than sound

  11. Question 11

    You shout towards a cliff and hear the echo 2 s later. Sound travels at 340 m/s. How far away is the cliff, in metres?

    Answerm

  12. Question 12

    You see lightning and hear the thunder 2 seconds later. Sound travels at about 340 m/s. About how far away is the storm, in metres?

    Answerm

  13. Question 13

    How do bats find insects in the dark?

    • A. They glow
    • B. They send out high-pitched sounds and listen for echoes
    • C. They smell them from far away
    • D. They use magnets

  14. Question 14

    You shout towards a cliff and hear the echo 2 s later. Sound travels at 340 m/s. How far away is the cliff, in metres?

    Answerm

  15. Question 15

    You see lightning and hear the thunder 5 seconds later. Sound travels at about 340 m/s. About how far away is the storm, in metres?

    Answerm

  16. Question 16

    Why do you see lightning before you hear thunder?

    • A. Sound travels faster than light
    • B. Light travels much faster than sound
    • C. Thunder is made later
    • D. Your eyes are faster than your ears

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

All done? Check your answers
  1. They send out high-pitched sounds and listen for echoes
  2. 510 m
  3. 1360 m
  4. steel
  5. 510 m
  6. 1700 m
  7. They send out high-pitched sounds and listen for echoes
  8. 170 m
  9. 1020 m
  10. Light travels much faster than sound
  11. 340 m
  12. 680 m
  13. They send out high-pitched sounds and listen for echoes
  14. 340 m
  15. 1700 m
  16. Light travels much faster than sound