Lesson Worksheet:Factors Affecting Friction | Nagwa
5/5/2022, 8:19 am
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Lesson Worksheet:
Factors Affecting
Friction
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Science
In this worksheet, we will practice identifying factors that affect
friction and explaining the causes of friction.
(
Lesson
Flashcards
)
Lesson
Worksheet
Q1: Fill in the blanks: Friction is the force that acts between
two
surfaces; it
motion.
A
touching, opposes
B
far apart, opposes
C
touching, encourages
D
far apart, encourages
Q2: Different surfaces can increase or decrease friction.
Ethan drives his car and then it starts to rain. What happens
to the friction force between the tires of the car and the
road?
A
The rain will increase the amount of friction.
B The rain decreases the amount of friction.
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Lesson Worksheet:Factors Affecting Friction | Nagwa
D
5/5/2022, 8:19 am
None of the answers are correct.
Q3: Which of the following factors increase friction?
A
Wet and smooth surfaces
B
Hot and shiny surfaces
C
Dry and rough surfaces
D
Icy and polished surfaces
Q4: Why is it harder for a car to stop when a road is icy?
A
There is more friction between the tire and the smooth
surface.
B
There is more friction between the tire and the rough
surface.
C
There is less friction between the tire and the smooth
surface.
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Lesson Worksheet:Factors Affecting Friction | Nagwa
5/5/2022, 8:19 am
Q5: Jackson, the home delivery man, is delivering two boxes
to a house. The two boxes are the same size but one is heavy
and the other is light.
Fill in the blanks to explain how friction will affect the
amount of force that he needs to apply when moving the
boxes: He needs to use
force to move the light box
and
force to move the heavy box.
A
a greater, a small
B
a small, a greater
C
no, a small
D
an equal, an equal
Q6: Fill in the blank: Friction happens when surfaces
.
A
are far apart
B
touch
C
are wet
D
are heavy
E
are close
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Lesson Worksheet:Factors Affecting Friction | Nagwa
5/5/2022, 8:19 am
Q7: How does a lubricant affect friction?
A
It increases friction.
B
It makes no difference.
C
It decreases friction.
Q8: Mason and Liam investigate which lubricant would
decrease the friction between a wooden ramp and a toy car
the best. They pour each lubricant onto the ramp and
calculate how long it takes for the car to go down the ramp.
Here are the results of the experiment.
Table 1: Lubricant Results
Type of Lubricant
Time Taken (seconds)
Oil
2 seconds
Water
4 seconds
Hand sanitizer
6 seconds
Which is the best lubricant?
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Lesson Worksheet:Factors Affecting Friction | Nagwa
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A
B
C
Q9: The red arrow shows the direction of a moving box.
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Lesson Worksheet:Factors Affecting Friction | Nagwa
5/5/2022, 8:19 am
Select the image that shows the direction of the friction
force.
A
B
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Lesson Worksheet:Factors Affecting Friction | Nagwa
5/5/2022, 8:19 am
C
D
Q10: Why is there no friction between the puck and the
table in air hockey?
A
The puck is made of plastic.
B
The puck does not touch the table.
C
The puck is very light, and the table is very heavy.
D
The puck moves very fast.
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