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WorksheetsFriction
Total questions: 25
Worksheet time: 22mins
Friction is an example of _____________
contact force
non contact force
both of these
none of these
The direction of force of friction is always _____ to the direction of motion
same
opposite
unchanged
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
Which of these materials do you predict would have the MOST amount of friction?
metal
tile
sand paper
denim
The rouugher the surface, the faster an object will travel over the surface
true
false
How would the absence of friction affect a marble travelling on a long, straight path?
the marble's speed would decrease
the marble would remain at a constant speed
the marble's speed would increase
the marble would stop immediately
The amount of friction depends on the weight of the objects pressing together
false
true
Rough surfaces have _________
greater friction
less friction
the same level of friction
When we rub our hands together _________.
frictional force works between them
energy is released
our hands become warm
all off the above
The rougher the surface, the faster an object will travel over the surface.
True
False
Why are the soles of shoes and tyres of vehicles grooved?
To increase friction
To reduce friction
Why do gymnasts apply a coarse substance to their hands?
Wheels on a skateboard most likely experience _______
Rolling Friction
Sliding Friction
Fluid Friction
Static Friction
Friction is the force that acts in the ___________ direction of movement.
similar
opposite
parallel
west
What is friction?
The random force between two solids, liquids, or gases.
The contact force between two solids, liquids, or gases that slide past one another.
The force that creates static electricity and helps us fly.
When there is friction, the energy of an object's motion is converted into _______ energy
heat
kinetic
stronger
friction
Which of the following is NOT an example of friction?
using the brakes on your bike to slow you down
putting your hand out the window
a satellite traveling through deep space
a hockey puck going across an ice rink
