P5 Science · Chapter 12brightbit.net/worksheets
Light
Name: ______________________Class: ________Date: ____________Score: ____ / 10
- 1.
Light travels in a:
(a) Curved path(b) Zigzag path(c) Straight line(d) Circular path
- 2.
What is the reflection of light?
(a) Light bending as it passes through different media(b) Light bouncing off a surface(c) Light being absorbed by a material(d) Light passing through a transparent material
- 3.
What is the difference between transparent, translucent, and opaque materials?
- 4.
Why does a shadow form behind an opaque object?
- 5.
How does the length of a shadow change as the Sun moves from low to directly overhead?
(a) Shadow gets longer(b) Shadow gets shorter(c) Shadow stays the same(d) Shadow disappears completely
- 6.
What is refraction?
(a) Light bouncing off a surface(b) The bending of light as it passes from one medium to another of different density(c) Light splitting into colours(d) The absorption of light by a dark surface
- 7.
White light can be split into a spectrum of colours by a prism. What are the colours of the visible spectrum in order?
- 8.
Why does a red apple appear red?
(a) It emits red light(b) It absorbs red light and reflects all other colours(c) It reflects red light and absorbs all other colours(d) It refracts red light
- 9.
A shadow is larger when the object is moved closer to the light source. Why?
(a) The object becomes larger(b) Light rays spread out from the source, so an object closer to the source blocks more rays creating a larger shadow(c) The light source becomes weaker(d) The surface behind reflects less light
- 10.
Name TWO sources of light.
Answer key — P5 Science: Light
For parents. Step-by-step explanations for every question are free on brightbit.net.
- 1.(c) Straight line
- 2.(b) Light bouncing off a surface
- 3.Transparent: light passes through clearly (glass); translucent: light passes through but is scattered (frosted glass); opaque: no light passes through (wood)
- 4.Light travels in straight lines and cannot pass through the opaque object, creating a dark region behind it where no light reaches
- 5.(b) Shadow gets shorter
- 6.(b) The bending of light as it passes from one medium to another of different density
- 7.Red, orange, yellow, green, blue, indigo, violet (ROYGBIV)
- 8.(c) It reflects red light and absorbs all other colours
- 9.(b) Light rays spread out from the source, so an object closer to the source blocks more rays creating a larger shadow
- 10.Any two of: the Sun, a candle flame, a torch/light bulb, stars, a firefly, bioluminescent organisms
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