Driver Ed Chapter 5 Natural Laws and Car Control

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

• gravity.

• energy of motion.

• kinetic energy.

• inertia.

A vehicle going uphill works

• with the force of gravity.

• against the force of gravity.

• against centrifugal force.

• with centrifugal force.

The center of gravity of a vehicle is that point

• around which all weight is evenly balanced.

• that is farthest from the ground.

• near the front bumper.

• about three feet under the roadway surface.

Energy of motion is another way of expressing

• kinetic energy.

• effect of wind on vehicle control.

• mileage rating of a vehicle.

• the way vehicle bodies are designed.

High energy of motion may cause a vehicle to

• go around a tight curve successfully.

• miss a tight curve.

• bank a curve.

• maintain good traction in a tight curve.

When a vehicle's speed triples, how much more distance does it need to stop?

• about double the distance

• about nine times the distance

• about six times the distance

• about three times the distance

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

• kinetic energy.

• friction.

• gravity.

• inertia.

When you slow for a turn, some traction is used to slow, and some is

• manufactured

• gained by the rear tires.

• used to turn.

• lost forever.

What are the most important parts of the control system?

• four tires

• brakes

• the steering wheel and column

• the clutch and accelerator

Good shock absorbers

• last for the life of the vehicle.

• decrease available traction.

• are needed only on foreign vehicles.

• help create traction.