If a car is travelling at a steady speed, what can be said of the driving and resistive forces acting on the car?
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In equilibrium
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Driving forces are twice as large as the resistive forces
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Resistive forces are twice as large as the driving forces
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There are no resistive forces acting on the car at a steady speed
Q.2.
A car stops in 20 m when travelling at 30 kilometers per hour. If the car is travelling at 40 kilometres per hour, how far does the car take to stop?
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20m
0%
26m
0%
27m
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30m
Q.3.
What is braking distance?
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The distance travelled in 10 seconds when a car is accelerating
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The distance travelled while the brakes are applied
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The distance required to accelerate to 100mph
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The energy required to stop in a given distance
Q.4.
What is stopping distance?
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Braking distance
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Reaction time
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Braking distance and reaction distance
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Reaction distance
Q.5.
If a driver's reaction time is 0.2 s and the braking time when their car is travelling at 10 m/s is 10 s, how far does the car travel before it comes to rest?
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50m
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51m
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52m
0%
53m
Q.6.
What can affect a driver's reaction time?
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Drink
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Drugs
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Tiredness
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All of the above
Q.7.
Which statement is true?
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When the brakes are applied, work done by friction between the brake and wheel increases the kinetic energy of the vehicle and decreases the temperature of the brakes
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When the brakes are applied, work done by friction between the brake and wheel reduces the kinetic energy of the vehicle and increases the temperature of the brakes
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When the brakes are released, work done by friction between the brake and wheel reduces the kinetic energy of the vehicle and increases the temperature of the brakes
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When the brakes are applied, work done by friction between the brake and wheel reduces the kinetic energy of the vehicle and decreases the temperature of the brakes
Q.8.
What can affect a vehicle's braking distance?
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Worn brakes
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Adverse weather
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Worn tyres
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All of the above
Q.9.
What is the greatest resistive force a car experiences when no braking forces are applied?
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Air resistance
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Passenger weight
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Stones
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Rain
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