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WorksheetsFriction
Total questions: 15
Worksheet time: 45mins
The direction of the force of friction is always _____ the direction of motion
similar to
opposite
unchanged in
the same as
Which of the following are lubricants?
oil and butter
sand and sawdust
Which of these materials do you predict would have the MOST amount of friction?
metal
tile
sand paper
plastic
The amount of friction depends on the weight of the objects pressing together and
the volume of the objects
the texture of the surfaces
the color of the objects
When there is friction, the energy of an object's motion is converted into _______ energy
heat
electric
solar
geothermal
Only solids can produce friction
true
false
reduce the force (weight) acting between the 2 surfaces
reduce the roughness of the 2 surfaces coming in contact
use wax, grease or oil
all of the above are ways of reducing friction
What type of friction occurs when an object is not moving?
static
sliding
fluid
rolling
