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- 1. Multiple Choice
Light travels fastest in ...
Air
Water
Glass
Vacuum
- 2. Multiple Choice
The following statement which is not included as properties of light is …..
Light is a longitudinal wave
Light is form of energy
Light travels in a straight line
Light is a ray which can be seen by eyes
- 3. Multiple Choice
Light rays are often represented by straight lines because …
Light is a form of energy
Light travels at high speed
Light travels in straight lines
Light rays form a beam of light
- 4. Multiple Choice
Which is the best reason why we cannot see around corners?
We do not have peripheral vision
Light bends 900 around corners
Light travels in a straight line
Light rays curve but do not go round sharp corners
- 5. Multiple Choice
The rectilinear propagation of light means that …..
Light travels in a straight line
Light moves at a very high velocity
Light molecules have a rectangular pattern.
Light moves in rectangular beams
- 6. Multiple Choice
The frequency of visible light is ….. Hz.
1013
1015
1017
1019
- 7. Multiple Choice
Light travels in the form of …..
Electromagnetic waves
Magnetic waves
Electric waves
Energy waves
- 8. Multiple Choice
The speed of light is …..
Varies with the medium
3 x 108 m/s in a vacuum
slower in water than in air
all are correct
- 9. Multiple Choice
Gamma rays, X-rays, UV rays, visible light, IR rays, microwaves and radio waves are parts of the …
Electromagnetic spectrum
Range of light
Electric spectrum
Color wheel
- 10. Multiple Choice
A burning candle is a/an ….. object.
Non-luminous
Luminous
Opaque
Translucent
- 11. Multiple Choice
We can see most clearly through a/an ….. object.
Translucent
Opaque
Transparent
Frosted
- 12. Multiple Choice
A non-luminous object …..
the moon
reflects light
does not produce its own light
all are correct
- 13. Multiple Choice
Wood, ceramics, and metals are examples of ….. objects.
Opaque
Translucent
Transparent
Reflective
- 14. Multiple Choice
Frosted glass is …..
Opaque
Translucent
Transparent
None of the above
- 15. Multiple Choice
What explains the formation of a shadow?
Light travels very fast
made by blocking the light
Light travels in straight lines
Objects can be translucent
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