Driver Education Chapter 9 Natural Laws and Car Control

Air bags are designed to

• be used with safety belts.

• protect in all types of collisions.

• take up most of the room on your dashboard.

• protect all occupants of the vehicle, front and back.

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

• kinetic energy.

• friction.

• gravity.

• inertia.

How many collisions occur when a vehicle hits a solid object?

• two

• zero

• three

• one

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.

A large vehicle , such as a truck, and a bus have

• good turning ability for quick turns.

• slow stopping ability.

• fast accelerating ability.

• quick braking ability.

A properly adjusted safety belt

• fits loosely across the body and tightens during a collision.

• fits snugly across the hips and comfortably across the chest.

• restricts the upper body from moving.

• restricts breatihing circulation.

What are the most important parts of a control system?

• Four tires

• Brakes

• The steering wheel and column

• The clutch and accelerator

Braking distance

• increases as speed decreases

• Decreases as speed increases

• Double if speed doubles

• Increases as speed increases

One purpose of the tread pattern on a tire is to

• Reduce tire wear

• Reduce traction

• Allow water to flow away from the tire

• Increase friction

An air- bag

• is an active restraint.

• automatically inflates to protect an occupant.

• must be fastened and adjusted by the occupant.

• is not a reliable protective device.