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5th grade light, sound and waves

5th grade (Year 6 in England) · 14 questions · Common Core: NGSS.4-PS4-2, NGSS.MS-PS4-2 · England: KS2 Y6 Light, KS3 Physics: Waves (light waves)

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  1. Question 1

    Why does a shadow have the same outline shape as the object?

    • A. Shadows are pictures painted by light.
    • B. Light travels in straight lines, so it is blocked exactly in the object's shape.
    • C. The object sends out darkness.
    • D. Light bends around objects.

  2. Question 2

    A ray of light hits a flat mirror at an angle of incidence of 60° (measured from the normal). What is the angle of reflection?

    Answer°

  3. Question 3

    True or false? Light travels in straight lines.

    • A. True
    • B. False

  4. Question 4

    A ray of light hits a mirror. The angle between the ray and the mirror surface is 55°. What is the angle of reflection (measured from the normal)?

    Answer°

  5. Question 5

    Which surface reflects light best to form a clear image?

    • A. black velvet
    • B. a smooth, shiny mirror
    • C. a rough wooden board
    • D. a sheet of paper

  6. Question 6

    Sunbeams through a gap in clouds look like straight lines. What does this show?

    • A. Light curves upward.
    • B. Light is solid.
    • C. Clouds make light.
    • D. Light travels in straight lines.

  7. Question 7

    A ray of light hits a flat mirror at an angle of incidence of 25° (measured from the normal). What is the angle of reflection?

    Answer°

  8. Question 8

    True or false? Mirrors change the direction light travels.

    • A. True
    • B. False

  9. Question 9

    A ray of light hits a mirror. The angle between the ray and the mirror surface is 30°. What is the angle of reflection (measured from the normal)?

    Answer°

  10. Question 10

    Which surface reflects light best to form a clear image?

    • A. a smooth, shiny mirror
    • B. a rough wooden board
    • C. black velvet
    • D. a sheet of paper

  11. Question 11

    How does a periscope let you see over a wall?

    • A. It bends light like a rubber band.
    • B. Two angled mirrors reflect the light down to your eye.
    • C. It makes the wall see-through.
    • D. It has a tiny camera inside.

  12. Question 12

    A ray of light hits a flat mirror at an angle of incidence of 60° (measured from the normal). What is the angle of reflection?

    Answer°

  13. Question 13

    True or false? We see objects because light from them travels into our eyes.

    • A. True
    • B. False

  14. Question 14

    A ray of light hits a mirror. The angle between the ray and the mirror surface is 40°. What is the angle of reflection (measured from the normal)?

    Answer°

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Answer key: 5th grade light, sound and waves

  1. 1. B. Light travels in straight lines, so it is blocked exactly in the object's shape.

  2. 2. 60 °

  3. 3. A. True

  4. 4. 35 °

  5. 5. B. a smooth, shiny mirror

  6. 6. D. Light travels in straight lines.

  7. 7. 25 °

  8. 8. A. True

  9. 9. 60 °

  10. 10. A. a smooth, shiny mirror

  11. 11. B. Two angled mirrors reflect the light down to your eye.

  12. 12. 60 °

  13. 13. A. True

  14. 14. 50 °