ICSE Class 6 Physics - Light - Test 2 (Intermediate)
1. A book kept in a dark room cannot be seen clearly because:
A. The book has no mass
B. There is not enough light reflected from it
C. The book becomes transparent in darkness
2. A glowing torch is an example of:
A. A natural source of light
B. An opaque object only
C. An artificial source of light
3. A star is called luminous because it:
A. Gives out its own light
B. Blocks all light
C. Allows all light to pass through
4. A chair in a classroom is visible during the day because it:
A. Produces its own light
B. Reflects light falling on it
C. Changes light into sound
5. If a cardboard sheet is placed between a candle and your eye, the candle cannot be seen because light:
A. Travels only in circles
B. Has no energy
C. Travels in straight lines
6. A torch beam seen in a dusty room appears straight. This shows that light travels:
A. In a straight line
B. Only downward
C. In a spiral always
7. We can see trees clearly through a clean glass window because glass is:
A. Opaque
B. Transparent
C. Luminous
8. A bathroom window made of frosted glass allows light but not a clear view. It is:
A. Transparent
B. Luminous
C. Translucent
9. A metal sheet is used to block sunlight because it is:
A. Opaque
B. Transparent
C. A natural source of light
10. If sunlight falls on a tree, the shadow is formed on the:
A. Same side as the Sun always
B. Opposite side of the Sun
C. Inside the tree only
11. A ball is placed between a torch and a wall. A dark patch forms on the wall because the ball:
A. Gives out light
B. Is transparent
C. Blocks light
12. When an object is moved closer to a torch, its shadow on a wall usually becomes:
A. Larger
B. Smaller always
C. Completely colourful
13. A clear glass tumbler does not form a dark shadow like a wooden block because it:
A. Produces its own light
B. Allows much light to pass through
C. Stops all light completely
14. In a shadow experiment, the wall acts as the:
A. Light source
B. Opaque object
C. Screen
15. When light falls on a plane mirror, it:
A. Bounces back
B. Disappears completely
C. Changes into smell
16. Which surface reflects light best?
A. Rough black cloth
B. Smooth shiny mirror
C. Muddy ground
17. A rough wall does not form a clear image because it:
A. Produces sunlight
B. Is always transparent
C. Scatters reflected light
18. The image formed by a plane mirror is usually:
A. Same size as the object
B. Always smaller than the object
C. Always larger than the object
19. In a plane mirror, your left hand appears as the image's:
A. Left hand only
B. Right hand
C. Foot
20. A simple periscope works by using:
A. Only sound waves
B. Only friction
C. Reflection by mirrors