General Science MCQs - MCQtimes.com

Electric Circuits and Currents

Circuit breakers work

constantly

only once

when there is resistance

when there is magnetic field

Author: rikazzz Comment

Investigating Space

Although Sirius looks like one bright star but actually it is

a galaxy

a comet

a cluster

a pair of two stars

Author: rikazzz Comment

Physical and Chemical Changes

When gases are heated, they

expand more than solids but less than liquids

expand more than liquids but less than solids

do not expand

both b and c

Author: rikazzz Comment

Elements and Compounds

A very light and inert gas is

oxygen

hydrogen

helium

neon

Author: rikazzz Comment

Electric Circuits and Currents

The best fit fuse for the hair drier that requires ‘2A’ current is

5A

4A

3A

2A

Author: rikazzz Comment

Investigating Space

The ‘galaxies’ are extremely

hot

far apart

close

cold

Author: rikazzz Comment

Respiration and Food Energy

When we inhale

the diaphragm is pushed upwards and the rib cage downwards

both diaphragm and rib cage are pushed downwards

the diaphragm is pulled downwards and the rib cage upwards

the diaphragm is pushed upwards and the rib cage is pulled downwards

Author: rikazzz Comment

Sound Waves

Sound is a form of

force

power

light

energy

Author: rikazzz Comment

Heat Transfer

If air is heated, it

rises

falls

compresses

gets dense

Author: rikazzz Comment

Atoms Molecules and Ions

“O3” is a chemical formula of

oxygen

oxides

ozone

acid rain

Author: rikazzz Comment