WorksheetsFactors affecting frictions
Total questions: 10
Worksheet time: 6mins
material with _______________ surfaces have less friction
smooth
rough
both
What is Friction?
Friction is the resistance of a fluid (liquid or gas) to a change in shape or movement of neighbouring portions relative to one another.
Friction pulls objects toward the center of the Earth.
The resistance that one surface or object encounters when moving over another
Friction force has its effect in the ......... direction of motion
opposite
same
with
Friction is a
non - contact force
contact force
electrostatic force
magnetic force
The factors on which friction depends
nature of the surfaces
how hard the objects are pressed together
both (a) and (b)
none of these
The force of ______apposes________.
Friction, rest
Friction, gravity
Friction, motion
Friction, sunlight
Friction due to fluids is called
force
pressure
friction
Drag
Lubricants(a) reduce friction(b) increase friction(c) both (a) and (b)(d) none of these
reduce friction
increase friction
do nothing
make the surface rough
When a bicycle skids what kind of friction is seen?
(a)
HoW many types of friction are there?(main types)
1
0
7
4
All of the above
