Physics Quiz

It is easier to roll a stone up a sloping road than to lift it vertical upwards because

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Work done in rolling is more than in lifting.
Work done in lifting the stone is equal to rolling it.

The absorption of ink by blotting paper involves:

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Viscosity of ink
Capillary action phenomenon

Stars appears to move from east to west because

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All stars move from east to west
The earth rotates from west to east

Mirage is due to:

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Unequal heating of different parts of the atmosphere
Magnetic disturbances in the atmosphere

Planets do not twinkle because

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They emit light of a constant intensity
Their distance from the earth does not change with time

Radiocarbon is produced in the atmosphere as a result of

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Collision between fast neutrons and nitrogen nuclei present in the atmosphere.
Action of ultraviolet light from the sun on atmospheric oxygen.

101 is formed by?

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50+50
10x50
70+30
70+50

Nuclear sizes are expressed in a unit named

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Fermi
Angstrom

Light year is a unit of

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Time
Distance

Pick out the scalar quantity

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Force
Pressure

Light from the Sun reaches us in nearly

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2 minutes
4 minutes

Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to:

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The heating effect of current alone
Hysteresis loss alone

Siphon will fail to work if:

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The densities of the liquid in the two vessels are equal.
The level of the liquid in the two vessels are at the same height.

Rectifiers are used to convert:

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Direct current to Alternating current
Alternating current to Direct current

Metals are good conductors of electricity because:

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They contain free electrons.
The atoms are lightly packed.

100 is formed by?

2 Mark(s)

50+50
10x50
70+30
70+50

Pa(Pascal) is the unit for

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Thrust
Pressure

Which of the following terms is not used in the field of physics?

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Latent heat
Stock value

Physics Quiz : Question 1 of 18