WorksheetsGrade VIII Physics ''Friction''
Total questions: 15
Worksheet time: 14mins
Friction is an example of _____________
contact force
non contact force
both of these
none of these
Without friction, an object in motion would never stop.
true
false
Frictional force depends on ____
surface area in contact
roughness of surface
both a and b
none of the above
In the given figure, a boy is shown pushing the box from right to left. The force of friction will act on the box
From right to left
From left to right
Vertically downwards
Vertically upwards
Rough surfaces have _________
greater friction
less friction
the same level of friction
Least amount of friction is required in which of the following sports?
Car race
Football
Ice skating
Tug of war
When we rub our hands together _________.
frictional force works between them
energy is released
our hands become warm
all off the above
