Vidaara.orgClass 4 · Mathematics
CodeVID-M4-WS
Light & Shadows — Practice Worksheet
Name: ____________________
Roll No.: __________
Date: ____________
General Instructions
- All questions are compulsory.
- Choose the correct option (A, B, C or D) for each question.
- The answer key is at the end — try the paper first!
Section A — Multiple Choice (1 mark each)
15 × 1 = 15 marks
1.
The Moon is NOT a true source of light because it…
- A.Is cold
- B.Is too small
- C.Is too far
- D.Only reflects the Sun's light
2.
A shadow forms when an object blocks…
- A.Sound
- B.Air
- C.Water
- D.Light
3.
We need both light AND working ___ to see.
- A.Eyes
- B.Ears
- C.Feet
- D.Teeth
4.
We see a non-glowing object like a book because it ___ light into our eyes.
- A.Hides
- B.Eats
- C.Reflects (bounces)
- D.Makes
5.
Opaque objects are the ones that make the darkest…
- A.Lights
- B.Shadows
- C.Mirrors
- D.Colours
6.
Clear glass that you can see through fully is…
- A.Translucent
- B.Opaque
- C.Transparent
- D.Dark
7.
A smooth, shiny surface that reflects light well is a…
- A.Sponge
- B.Wall
- C.Mirror
- D.Cloth
8.
Why do we see clear reflections in a mirror but not in a rough wall?
- A.Mirrors are heavy
- B.Walls are cold
- C.A smooth surface reflects light evenly
- D.Walls glow
9.
Light usually travels in…
- A.Curves
- B.Zigzags
- C.Circles
- D.Straight lines
10.
Which is transparent?
- A.A wooden table
- B.A brick wall
- C.A clear water glass
- D.A metal sheet
11.
Why does a shadow have no colour of its own (it looks dark)?
- A.No light reaches that spot
- B.It is painted black
- C.Shadows are cold
- D.Light is grey
12.
A shadow always forms on the side ___ from the light.
- A.Towards
- B.Away (opposite)
- C.Above
- D.Inside
13.
The biggest natural source of light for the Earth is the…
- A.Moon
- B.Sun
- C.Mirror
- D.Bulb
14.
When you look in a flat mirror you see your…
- A.Twin
- B.Shadow
- C.X-ray
- D.Image (reflection)
15.
Which is a man-made source of light?
- A.A star
- B.The Sun
- C.An electric bulb
- D.A firefly
Section B — Challenge / Olympiad (2 marks each)
5 × 2 = 10 marks
16.
A shopkeeper sees a red apple as red because the apple sends ___ light to the eyes.
- A.Green
- B.Blue
- C.Red
- D.No
17.
The word AMBULANCE is written backwards on the front of vans so that drivers ahead read it correctly in their…
- A.Window
- B.Mirror
- C.Shadow
- D.Map
18.
A glowing firefly and the hot Sun are both natural light sources, but the firefly is special because its light is…
- A.Cool, not hot
- B.Very hot
- C.Man-made
- D.A reflection
19.
Why are windows made of transparent glass and not opaque wood?
- A.To let light into the room
- B.To keep light out
- C.To make shadows
- D.To stay warm
20.
A sundial tells the time using the moving…
- A.Sound of birds
- B.Colour of the sky
- C.Shadow of a pointer
- D.Wind
Answer Key
Section A — Multiple Choice (1 mark each)
- (D) Only reflects the Sun's light
- (D) Light
- (A) Eyes
- (C) Reflects (bounces)
- (B) Shadows
- (C) Transparent
- (C) Mirror
- (C) A smooth surface reflects light evenly
- (D) Straight lines
- (C) A clear water glass
- (A) No light reaches that spot
- (B) Away (opposite)
- (B) Sun
- (D) Image (reflection)
- (C) An electric bulb
Section B — Challenge / Olympiad (2 marks each)
- (C) Red
- (B) Mirror
- (A) Cool, not hot
- (A) To let light into the room
- (C) Shadow of a pointer
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