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Colour, prisms and refraction

7th grade (Year 8 in England) · 11 questions · Common Core: NGSS.MS-PS4-2 · England: KS3 Physics: Waves (light waves), KS4 Combined Science: Light and electromagnetic waves

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1
Question 1
Colour and light: which statement is NOT true?
- A. Light slows down when it enters glass or water.
- B. A red filter lets red light through and absorbs other colours.
- C. White light is a mixture of colours.
- D. Light travels at the same speed in glass as in air.
2
Question 2
Why does a red apple look red in white light?
- A. It reflects red light and absorbs the other colours
- B. It absorbs red light
- C. It reflects all colours
- D. It makes red light
3
Question 3
Colour and light: which statement is NOT true?
- A. Light slows down when it enters glass or water.
- B. A red filter lets red light through and absorbs other colours.
- C. White objects absorb all colours.
- D. White light is a mixture of colours.
4
Question 4
What colour does a white T-shirt look under only red light?
- A. blue
- B. white
- C. red
- D. green
5
Question 5
Colour and light: which statement is NOT true?
- A. A red filter turns white light red by adding red.
- B. Black objects absorb most of the light that falls on them.
- C. A red filter lets red light through and absorbs other colours.
- D. White light is a mixture of colours.
6
Question 6
What does a prism do to white light?
- A. splits it into a spectrum of colours
- B. turns it black
- C. stops it completely
- D. makes it brighter
7
Question 7
Colour and light: which statement is NOT true?
- A. A red filter lets red light through and absorbs other colours.
- B. Light travels at the same speed in glass as in air.
- C. Light slows down when it enters glass or water.
- D. White light is a mixture of colours.
8
Question 8
Why does a red apple look red in white light?
- A. It absorbs red light
- B. It makes red light
- C. It reflects red light and absorbs the other colours
- D. It reflects all colours
9
Question 9
Colour and light: which statement is NOT true?
- A. Light slows down when it enters glass or water.
- B. A red filter lets red light through and absorbs other colours.
- C. Black objects absorb most of the light that falls on them.
- D. Light travels at the same speed in glass as in air.
10
Question 10
What colour does a white T-shirt look under only red light?
- A. white
- B. blue
- C. green
- D. red
11
Question 11
Colour and light: which statement is NOT true?
- A. A red filter turns white light red by adding red.
- B. Black objects absorb most of the light that falls on them.
- C. A red filter lets red light through and absorbs other colours.
- D. Light slows down when it enters glass or water.

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Answer key: Colour, prisms and refraction

1. D. Light travels at the same speed in glass as in air.
2. A. It reflects red light and absorbs the other colours
3. C. White objects absorb all colours.
4. C. red
5. A. A red filter turns white light red by adding red.
6. A. splits it into a spectrum of colours
7. B. Light travels at the same speed in glass as in air.
8. C. It reflects red light and absorbs the other colours
9. D. Light travels at the same speed in glass as in air.
10. D. red
11. A. A red filter turns white light red by adding red.