Forces Effects
Density has ‘SI’ unit which is
kilogram per cubic meter
gram per cubic meter
meter per kilogram
meter per cubic meter
kilogram per cubic meter
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The ‘SI’ unit of force isA. watt
B. joule
C. newton
D. kilogram
Forces can easily change the
A. direction of an object
B. gravity of an object
C. density of an object
D. volume of an object
Friction between moving parts of machine causes
A. heat
B. light
C. energy
D. oil
Force can be measured by the help of
A. foci meter
B. spring balance
C. pane balance
D. both a and b
The force of friction can be reduced by the help of
A. ball bearing
B. lubricants
C. cushion surfaces
D. all of them
In order to reduce air and water resistance, objects are shaped in
A. streamline
B. oblongata
C. rectangular
D. conical
A substance will float on surface of water if its density is less than
A. liquid
B. gas
C. both a and b
D. aqueous
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