Chapter 9 Driver Ed

Front

The force that pull objects toward the center of the earth is

Back

gravity.

Front

A vehicle's speed when going downhill tends to

Back

increase.

Front

Energy of motion is another way of expressing

Back

kinetic energy.

Front

Because of its energy of motion, when a vehicle's speed doubles, the vehicle needs about

Back

four times the distance to stop.

Front

The gripping action that keeps a tire from slipping on the roadway is called

Back

traction.

Front

When braking and turning, you use

Back

changing traction forces.

Front

If a tire is underinflated, the only part that grips the road well is the

Back

outside edges of the tire tread.

Front

All-wheel drive means

Back

power is supplied to four wheels.

Front

Good shock absorbers
Options:
last for the life of the vehicle.
decrease available traction.
are needed only on foreign vehicles.
help create traction.

Back

help create traction.

Front

In wet weather, with temperatures near the freezing point, which freezes first: a highway roadway or a bridge roadway?

Back

A bridge roadway freezes before a highway roadway.