CSS Past Papers Everyday Science 2011 Test - 2

CSS Past Papers
Everyday Science 2011
Test - 2

1. An electric current can produce?

a) Chemical effect
b) Magnetic effect
c) Heating effect
d) All of these three
e) None of these

2. The unit of home electricity energy consumption is?

a) Watt hour
b) Kilowatt hour
c) Joule hour
d) Kilojoule hour
e) None of these

3. The magnet always points in the same direction, if move freely i.e. towards north and south poles, because of?

a) Gravitational field
b) A lot of metals deposits on north and south poles
c) Due to attraction of north pole and repulsion of Western pole
d) Earth is a huge magnet
e) None of these

4. When sound is reflected from floor, ceiling or a wall , it mixes with the original sound and change its complexion, it is called as?

a) Sound
b) Echo
c) Reverberation
d) noise
e) None of these

5. the speed of sound in dry air at 20 C is about?

a) 130 meters per second
b) 230 meters per second
c) 330 meters per second
d) 430 meters per second
e) None of these

6. 16.The speed of light in vacuum is about?

a) 300 Million meters per second
b) 300 Million meters per hour
c) 300 Million kilometers per second
d) 300 Million kilometers per hour
e) None of these

7. The time light takes from Sun to reach Earth is?

a) 8 minutes
b) 25 minutes
c) 45 minutes
d) 60 minutes
e) None of these

8. Light from Sun travels a distance before it reaches Earth?

a) 50 Million Km
b) 100 Million Km
c) 150 Million Km
d) 200 Million Km
e) None of these

9. the most suitable thermometer for measuring the boiling point of water is?

a) Mercury thermometer
b) Alcohol thermometer
c) Bimetallic thermometer
d) Liquid crystal thermometer
e) None of these

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