Forces and Braking Flashcards
1
Q
Which two forces are balanced if a vehicle travels at a steady speed?
A
Resistive and Driving
2
Q
Which force causes most of the resistive force?
A
Air Resisitance
3
Q
For a given braking force, what does a greater speed cause?
A
A greater stopping distance
4
Q
Stopping Distance?
A
Thinking distance + Braking distance
5
Q
Thinking Distance?
A
Distance traveled during the drivers reaction time
6
Q
Braking Distance?
A
Distance traveled under the braking force
7
Q
What affects the drivers reaction time? (4)
A
Tiredness
Alcohol
Drugs
Distractions
8
Q
What factors affect the braking distance of a car?
A
Icy/ wet roads
Poor car condition (brakes/ tyres)
9
Q
Which force between the brakes and wheels reduce the kinetic energy of a car?
A
Friction
10
Q
What does the friction of the brakes cause?
A
Temperature increase
