Motor Vehicle Safety Quiz

What is a major factor in the cause of fatalities and major injury in motor vehicle crashes?

• Vehicle color

• Speed

• Road signs

• Weather conditions

How is speed related to the force of the impact in a vehicle crash?

• Speed is inversely related to the force of the impact.

• Speed is not related to the force of the impact.

• Speed is directly related to the force of the impact due to kinetic energy.

• Speed is only related to the force of the impact at high velocities.

What happens to the kinetic energy of a vehicle when the speed and weight of the vehicle increase?

• The kinetic energy decreases.

• The kinetic energy remains the same.

• The kinetic energy is transferred to potential energy.

• The kinetic energy increases.

What is kinetic energy?

• The energy a body possesses due to its position.

• The energy a body possesses due to its motion.

• The energy a body loses when coming to a stop.

• The energy a body uses to maintain its velocity.

According to the text, when does a body maintain its kinetic energy?

• When its speed changes.

• When it is at rest.

• When its acceleration changes.

• Unless its speed changes.

How does speed affect the stopping distance and the striking power of a vehicle?

• It has no effect.

• It decreases both stopping distance and striking power.

• It increases both stopping distance and striking power.

• It increases stopping distance but decreases striking power.

What happens to the impact or striking power of your vehicle when you double your speed from 20 to 40 mph?

• It remains the same.

• It is halved.

• It is doubled.

• It is quadrupled.

If you triple your speed from 20 to 60 mph, how much greater is the impact and braking distance compared to driving at 20 mph?

• 3 times greater.

• 6 times greater.

• 9 times greater.

• 12 times greater.

At 60 mph, in a commercial vehicle, how does the stopping distance compare to the length of a football field?

• It is shorter than a football field.

• It is about the same length as a football field.

• It is greater than the length of a football field.

• It is twice the length of a football field.

When the speed is increased to 80 mph, how much greater are the impact and braking distance compared to driving at 20 mph?

• 4 times greater.

• 8 times greater.

• 12 times greater.

• 16 times greater.