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WorksheetsFriction
Total questions: 14
Worksheet time: 7mins
How does friction affect speed?
More friction decreases speed
Less friction decreases speed
More friction increases speed
Less friction doesn't affect speed
Friction is a force that acts in an _____________ direction of movement.
Similar
Parallel
Opposite
West
A type of friction that occurs when air pushes against a moving object causing it to slow down.
Surface area
Velocity
Air resistance
Gravity
Which of the following is an example of friction that is helpful?
Brakes used on a bike
Tread on the bottom of your shoes
Tires against the road
All are examples that are helpful
Which of the following is an example of friction that is harmful?
Pencil marking on paper
Sand placed on ice in the winter
Engine parts wearing out
Using eraser to erase marks
What does friction produce?
Light
Heat
Sound
Gravity
Without friction, a moving object will never stop.
True
False
The rougher the surface, the faster an object will travel over it.
True
False
Rough surfaces have ________________
Greater friction
The same level of friction
Less friction
The shape of an object that helps in reducing friction.
Circular shape
Flat shape
Strealined
None of the above
Tom falls out of an airplane towards the ground. Then he remembers to open his parachute and lands gently. What force slowed Tom down and how? Explain.
Give ONE example of a useful effect of friction and ONE example of any harmful effect.
A force that keeps you on the ground and pulls objects to the center of the Earth is called (a)
(a) is used on machines to make the surfaces slide over one another easily so there is less friction.
