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WorksheetsFriction
Total questions: 23
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
Friction is the ____________ that one surface exerts on another surface.
gravity
motion
force
There are _________ types of friction.
2
1
4
5
Sliding friction is when two _____________ surfaces slide over one another.
liquid
oil
solid
Rolling friction is when an object ___________ over a surface.
bounces
rolls
slides
Fluid friction includes when an object moves through air.
true
false
_____________ friction acts on objects that are not moving.
sliding
rolling
static
fluid
