
Friction and Its Applications

Interactive Video
•
Physics
•
6th - 8th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the dual nature of friction as discussed in the video?
Friction can be both useful and undesirable depending on the situation.
Friction is always undesirable.
Friction is always useful.
Friction has no impact on daily life.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is commonly used to increase friction on surfaces?
Using water
Making surfaces rough
Applying oil
Making surfaces smooth
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are treaded tires used on vehicles?
To make the vehicle look stylish
To provide better grip on the road
To increase the speed of the vehicle
To reduce the weight of the vehicle
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does spreading sand on a slippery surface affect friction?
It makes the surface more slippery
It reduces friction
It has no effect on friction
It increases friction
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What do gymnasts apply on their hands to improve grip?
Rough material
Oil
Water
Powder
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is grease applied to machinery parts?
To reduce friction
To reduce noise
To make the machine heavier
To increase friction
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of lubrication in machines?
To increase the temperature
To make surfaces rough
To add weight to the machine
To make surfaces smooth and reduce friction
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