WorksheetsFriction GRADE 4
Total questions: 14
Worksheet time: 9mins
Friction ________ the motion of an object.
works on the same direction of
has no effect on
supports
opposes
It is an example of which force ?
Mechanical Force
Gravitational Force
Frictional Force
Muscular Force
True or False: objects that are smooth have LESS friction than objects that are rough
True
False
(a) is used to reduce friction between surfaces
Friction produces a lot of heat that may (a) machine parts.
The rougher the surface, ___ is the friction
more
less
there is no
(a) shape of vehicles helps to reduce friction due to air
(a) is produced due to friction.
Which is not the harmful effect of friction?
causes wear and tear of tyres
heat that damage vehicles
make it difficult for heavy objects to move
helps in walking
Which of these materials do you predict would have the MOST amount of friction?
Sand paper
Denim
Tiles
Metal
TRUE or FALSE if you push a box across a surface like Ice with no friction, it will NEVER stop
FALSE, it will stop very quickly
TRUE, as long as it doesn't run into something it will keep going and going and going
TRUE or FALSE if you push a box across a surface like rough wood with a lot friction, it will NEVER stop
TRUE, as long as it doesn't run into something it will keep going and going and going
FALSE, it will stop very quickly
Which of these best describes friction?
A rubbing force.
Something that is slippery.
Gravity.
Movement across a smooth surface.
The amount of friction depends on how hard objects are pressing together.
True
False
