General Science

Investigating Space
From ancient times, people have been trying to understand how earth had fit into
space
atmosphere
galaxy
solar system
Author: rikazzz Comment
Electric Circuits and Currents
To make the coil keep rotating, the current is reversed after every half turn by a device called
brush
commutator
mutator
carbon spring
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Atoms and Atom Model
In element Uranium-235, the combined number of neutrons and protons is
92
235
35
200
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Mixtures
A process in which liquid changes into vapor or gas by boiling, is called
distillation
filtration
evaporation
fractional distillation
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Electric Circuits and Currents
The consumed number of units of electricity can be found by applying formula
Power/distance
Power/time
Distance x Time
Power x Time
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Elements and Compounds
“Cu” is symbol of
copper
cobalt
curium
carbon
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Electric Circuits and Currents
1000mA of current is equal to
1A
10A
100A
0.1A
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Physical and Chemical Changes
The name of the inventor who invented plastic is
John Dalton
John Green
Albert Einstein
John Hyatt
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Heat Transfer
The objects those are warmer than their surroundings
gain heat
lose heat
transfer heat
share heat
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Dispersion of Light
An example of a device in which convex lens is used, is
mirror
telescope
spectacles
contact lenses
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