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1st grade light, sound and waves

1st grade (Year 2 in England) · 15 questions · Common Core: NGSS.1-PS4-2, NGSS.4-PS4-2, NGSS.1-PS4-1, NGSS.1-PS4-3 · England: KS2 Y3 Light, KS2 Y4 Sound, KS1 Y1 Everyday materials

Name

Date

Score/ 15

  1. Question 1

    What message does this signal send: three short blasts on a whistle repeated?

    • A. I need help.
    • B. There may be a fire: get out.
    • C. Playtime is over; go back to class.
    • D. Stop and wait.

  2. Question 2

    True or false? You can see your reflection clearly in a woolly jumper (sweater).

    • A. True
    • B. False

  3. Question 3

    Could you see a clear reflection in this: a shiny spoon?

    • A. reflects light well (shiny and smooth)
    • B. does not reflect well (dull or rough)

  4. Question 4

    True or false? Loud sounds can make objects nearby vibrate.

    • A. True
    • B. False

  5. Question 5

    Is a firefly a light source?

    • A. light source
    • B. not a light source (reflects light)

  6. Question 6

    Why does a pedestrian crossing beep as well as show a green light?

    • A. to wake up birds
    • B. because the light is broken
    • C. so people who cannot see well know when to cross
    • D. to make the cars go faster

  7. Question 7

    Does this signal use light, sound or both: a torch (flashlight) flashing a code?

    • A. light
    • B. sound
    • C. both light and sound

  8. Question 8

    True or false? Moving a puppet away from the light makes its shadow bigger.

    • A. True
    • B. False

  9. Question 9

    Noah moved a toy away from a torch (flashlight) and measured its shadow on the wall. How much taller was the shadow at 10 cm than at 40 cm?

    Shadow height (cm) for each distance from the torch01020304050605610 cm4520 cm3230 cm1740 cm

    Answercm

  10. Question 10

    True or false? A shadow forms when an object blocks light.

    • A. True
    • B. False

  11. Question 11

    What vibrates to make the sound of a bell?

    • A. the metal bell
    • B. the air inside the tube
    • C. the cone at the front
    • D. your vocal cords in your throat

  12. Question 12

    When you speak, what vibrates to make the sound?

    • A. your teeth
    • B. your eyes
    • C. your hair
    • D. your vocal cords in your throat

  13. Question 13

    When a very loud lorry (truck) goes past, the windows rattle. Why?

    • A. The windows are scared.
    • B. The loud sound makes the glass vibrate.
    • C. The windows are making the noise first.
    • D. The lorry touches the windows.

  14. Question 14

    Why does a dentist use a tiny mirror?

    • A. to see the backs of your teeth
    • B. to make your teeth white
    • C. to keep your mouth warm
    • D. to scare germs away

  15. Question 15

    Which of these is opaque?

    • A. a metal tray
    • B. clean water
    • C. baking paper (wax paper)
    • D. a thin cotton sheet

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Answer key: 1st grade light, sound and waves

  1. 1. A. I need help.

  2. 2. B. False

  3. 3. A. reflects light well (shiny and smooth)

  4. 4. A. True

  5. 5. A. light source

  6. 6. C. so people who cannot see well know when to cross

  7. 7. A. light

  8. 8. B. False

  9. 9. 39 cm

  10. 10. A. True

  11. 11. A. the metal bell

  12. 12. D. your vocal cords in your throat

  13. 13. B. The loud sound makes the glass vibrate.

  14. 14. A. to see the backs of your teeth

  15. 15. A. a metal tray