Driving Physics Quiz

To allow enough distance to stop when responding to hazardous objects or conditions, you should identify a planned path of travel ___ seconds ahead.

• 2-4

• 12-15

• 20-30

• 50-60

___ provides less traction than when driving on concrete.

• Asphalt

• Gravel

• Brick

• All of the above

If a vehicle’s speed doubles, e.g., from 20 mph to 40 mph, the distance needed to stop the vehicle increases by ___ times.

• 2

• 3

• 4

• 8

When braking hard, the weight of the vehicle noticeably shifts ___.

• To the rear of the vehicle

• To the front of the vehicle

• To the left of the vehicle

• To the right of the vehicle

When turning or curving to the right, the contact patches of the ___ increase in size.

• Front tires

• Rear tires

• Right side tires

• Left side tires

Define hydroplaning, and explain how drivers can prevent hydroplaning from happening.

List and explain factors that affect traction between a vehicle’s tires and a road surface.

List four substances that can reduce traction between a vehicle’s tires and a road surface.

Explain the relationship between inertia and traction.

Natural laws affect vehicles traveling up and down hills. Explain how hills influence vehicle speed and the ability of drivers to accelerate and decelerate.