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Physics

Physics
The instrument for measuring intensity of earthquakes is called

Ediograph
Ergograph
Pantagraph
Seismograph

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Physics
Water cannot be used to extinguish fire caused by electric current, because

It may cause electrolysis
It may cause hydrolysis
It may cause electrocution
It may spoil the wiring

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Physics
At what temperature do the Fahrenheit and Celsius scales give the same reading?

32 degreees
0 degreees
212 degrees
-40 degreees

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Physics
Total number of colours exists in sunlight

5
10
9
7

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Physics
The first law of thermodynamics is simply the case of

The law of conservation of energy
The law of heat exchange
Newton's law of cooling
Charle's law

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Physics
A person does some work of 1,000 J in 2 s. His power will be ________

50W
1000W
25W
500W

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