3rd grade light, sound and waves
3rd grade (Year 4 in England) · 16 questions · Common Core: NGSS.1-PS4-3, NGSS.4-PS4-2 · England: KS2 Y3 Light
Name
Date
Score/ 16
Question 1
Why do sunglasses with UV protection help your eyes on a bright day?
- A. They make you see in the dark.
- B. They let in more light.
- C. They make the Sun bigger.
- D. They block harmful ultraviolet light and reduce glare.
Question 2
How is a shadow made?
- A. Light bends round the object
- B. An object gives out darkness
- C. An opaque object blocks light
- D. A mirror reflects black light
Question 3
Which material is transparent?
- A. frosted glass
- B. tracing paper
- C. clear glass
- D. aluminium (aluminum) foil
Question 4
Is cling film (plastic wrap) transparent, translucent or opaque?
- A. transparent
- B. translucent
- C. opaque
Question 5
True or false? You cannot get sunburnt on a cloudy day.
- A. True
- B. False
Question 6
Is this safe or unsafe in strong sunlight: staying in strong sun all day without cover?
- A. safe
- B. unsafe
Question 7
Why must you never look straight at the Sun, even with sunglasses?
- A. The Sun is too far away to see.
- B. It makes the Sun angry.
- C. It makes the Sun go out.
- D. Its light is strong enough to permanently damage your eyes.
Question 8
How is a shadow made?
- A. A mirror reflects black light
- B. An opaque object blocks light
- C. An object gives out darkness
- D. Light bends round the object
Question 9
Which material is opaque?
- A. a thin cotton sheet
- B. aluminium (aluminum) foil
- C. cling film (plastic wrap)
- D. tracing paper
Question 10
Is clear glass transparent, translucent or opaque?
- A. transparent
- B. translucent
- C. opaque
Question 11
True or false? Sunscreen protects skin from ultraviolet (UV) light.
- A. True
- B. False
Question 12
Is this safe or unsafe in strong sunlight: viewing the Sun with a pinhole projector?
- A. safe
- B. unsafe
Question 13
What is "dark"?
- A. a gas that fills rooms at night
- B. the absence of light
- C. a kind of black light
- D. a shadow from the Moon
Question 14
Why does a shadow have the same shape as the object?
- A. Light travels in straight lines past the edges of the object
- B. Shadows copy objects on purpose
- C. The object is a light source
- D. Light bends around the object
Question 15
Which material is opaque?
- A. clear water
- B. tracing paper
- C. wood
- D. cling film (plastic wrap)
Question 16
Is tracing paper transparent, translucent or opaque?
- A. transparent
- B. translucent
- C. opaque
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