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Understanding Friction and Stopping Distances
By Mr Pike
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Last updated about 11 hours ago
15 questions
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Question 1
1.
Which surface will have less friction: ice or sand?
Ice
Sand
Question 2
2.
What is the function of brake pads in a car?
To decrease friction
To increase friction
To decorate the wheels
No function
Question 3
3.
Can friction generate heat?
True
False
Question 4
4.
The rougher the surface, the ___ the friction.
Higher
Lower
Question 5
5.
What factors can affect stopping distances?
Speed
Weather conditions
Friction
Car's color
Question 6
6.
When we apply brakes to a bicycle, which type of friction comes into play?
rolling friction
sliding friction
fluid friction
static friction
Question 7
7.
Is the stopping distance greater at higher speeds?
Yes
No
Question 8
8.
All surfaces have the same amount of friction.
True
False
Question 9
9.
What can increase the friction between two surfaces?
Making the surfaces rougher
Applying more force
Reducing the contact area
Adding a lubricant
Question 10
10.
Wet roads increase the stopping distance of vehicles.
True
False
Question 11
11.
What happens to friction when we oil a surface?
Decreases
Increases
Remains the same
Question 12
12.
Does the weight of an object affect the friction?
Yes
No
Question 13
13.
In a car, which systems work together to stop the car once the brake pedal is pressed?
Electrical System
Braking System
Exhaust System
Steering System
Question 14
14.
In space, where there is no resistance or friction, an object in motion will keep moving forever unless acted on by another force.
True
False
Question 15
15.
If a driver doubles their speed, the stopping distance will...
remain the same
double
quadruple