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

Back

help create traction.

Front

In wet weather, with temperatures near the freezing point, a bridge roadway freezes before a highway roadway.

Back

A bridge roadway freezes before a highway roadway.