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Worksheets8th class
Total questions: 10
Worksheet time: 8mins
Name
Class
Date
1.
What is the unit called that measures force?
a)
weight
b)
meter
c)
Newton
d)
kilogram
2.
What does friction produce?
a)
light
b)
sound
c)
heat
d)
gravity
3.
Which of the following is an example of friction that is harmful?
a)
Pencil marking on paper
b)
Engine parts wearing out
c)
sand placed on ice in the winter
d)
Using an eraser to erase marks
4.
What type of friction is not moving?
a)
static
b)
sliding
c)
fluid
d)
rolling
5.
Which of the following is an example of friction that is helpful?
a)
Brakes used on a bike
b)
Tires from a car on the road
c)
Tread on the bottom of your shoes
d)
All are examples that are helpful
6.
A type of friction that occurs when air pushes against a moving object causing it to decelerate.
a)
surface area
b)
air resistance
c)
velocity
d)
gravity
7.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
8.
Movers slide a box down the ramp of a truck.
What helps slow the box as it slides to the bottom of the ramp?
What helps slow the box as it slides to the bottom of the ramp?
a)
friction
b)
gravity
c)
inertia
d)
magnetism
9.
This car is turning, but there’s a puddle of water in the road. Which diagram best shows how the puddle will affect the path of the car after it hits the puddle?
a)
b)
c)
d)
10.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
d)
less friction doesn't affect speed
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