2.5 - Friction Flashcards
1
Q
What is friction?
A
A force that opposes the relative motion between two surfaces that are in contact
2
Q
What is one disadvantage of friction?
A
it wastes energy
3
Q
What happens to the energy lost due to friction?
A
it is converted into heat energy
4
Q
How does friction affect the top speed of a vehicle?
A
it decreases the top speed
5
Q
What is the purpose of aerodynamic shaping in vehicles?
A
to decrease the frictional force
6
Q
What is one advantage of friction?
A
it allows motion to start and stop
7
Q
Why is friction a problem at high speeds?
A
it takes a lot of energy to overcome, limiting top speeds
8
Q
List two advantages of friction.
A
It allows motion to start and stop
It prevents slipping
9
Q
List two disadvantages of friction.
A
Friction wastes energy.
It limits top speeds.
