Year 7 friction
Authored by Lakshmi Deepa
Science
7th Grade
Used 4+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which picture shows a friction force?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which factor can affect the size of the friction force acting when an object slides over a surface?
The colour of the surface.
How transparent the surface is.
How rough the surface is.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identify the false statement.
Friction forces can slow down an object.
Friction forces can prevent movement.
Friction forces only act when there is movement.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can friction be reduced?
reduce the force acting between the 2 surfaces
reduce the roughness of the 2 surfaces coming in contact
use wax, grease or oil
all of them are ways of reducing friction
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does friction affect speed?
more friction decreases speed
more friction increases speed
less friction decreases speed
less friction doesn't affect speed
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