Friction Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What is friction?

A

Friction is the force that resists the movement of objects sliding or rolling over one another

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Why would you want to reduce friction?

A

reducing friction increasing the efficiency of the machine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

give an example to reduce friction

A

putting ball bearings between the wheel and axle to stop them from sliding over eachother

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

when is friction good?

A

when we walk or run the grip between the shoes and ground. and when trying to break machines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

give an example of when friction is good

A

the friction between the brakes and wheels on bikes and cars slow them down.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly