Driver Education Iowa 5 Natural Laws and Car Control

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If all three vehicles are traveling at the same speed, is the vechicle that weighs 3000 lbs' energy of motion MORE THAN it LESS THAN that of the vehicles that weigh 40000 and 7000 lbs?

More than

Restraint device that you have to engage

Active restraint device

Which of the following is an example of a supplemental restraint system?

Air bag

How do you best position and use child safety seats?

Back seat middle, follow manual instruction

A curve that is higher on the outside is a ________.

Banked curve

A bald tire might result in a _______, which is a sudden loss of air pressure in the tire.

Blowout

The distance your vehicle travels from the time you apply the brake until the vehicle stops

Braking distance

Speed increases without accelerating.

Car going downhill

Stopping distance increases.

Car going downhill

Driver has the greatest line-of-sight restriction.

Car going uphill

Driver might need to accelerate to maintain speed

Car going uphill

Speed decreases without deceleration.

Car going uphill

The force of gravity causes speed to decrease.

Car going uphill

Driver has the best clear line of sight ahead and to the rear.

Car on top of a hill

The vehicle'sbcenter of gravity is raised.

Car on top of a hill

Point around which an object's weight is evenly distributed.

Center of Gravity

When going uphill, will the force of gravity DECREASE or INCREASE each vehicle's speed?

Decrease

What is total stopping distance?

Distance your vehicle travrls while you make a stop

When an object moves, it acquires

Energy of motion

Force that keeps each tire from sliding on the road.

Friction

The force that pulls all things to earth is called _______.

Gravity

The ______ your speed, the longer your braking distance.

Higher

The force with which one moving object hits another object is the force of _______.

Impact

The gtuoping ability of a tire will ______ as the amount of tread touching the road increases.

Improve

What are the three factors that affect your vehicle on a curve?

Load, speed, sharpness of curve

What are the two factors that affect energy of motion?

Weight and square of its change in speed (kinetic energy)

Gravity has the greatest effect on which vehicle?

A car that weighs 40000 lbs

______ is the friction that allows a vehicle's tires to gripthe road.

Traction

_______ is the friction which allows tires to grip the roadway.

Traction

The grooved surface of tire that grips the roadway.

Tread

The center of gravity has been raised on the vehicle that weighs

A car that weighs 7000 lbs

Assume all three vehicles are traveling 55 mph. They are the same distance from the roadway barrier. Which vehicle will hit the barrier with the greatest force of impact?

A car that is 40000 lbs

The distance your car travels during the time it takes you to identify, predict, and decide to slow for a hazard is your ________ time.

Perception

The distance traveled while you identify a situation is your _________.

Perception distance

Your _______ is the length of time it takes you to identify, predict, and decide to slow for a hazard.

Perception time

The length of time you take to execute an action is called your ______ time.

Reaction

Your _______ is the length of time you take to execute your action in response to a hazard after you identify it.

Reaction

The length of time you take to execute your action after you know a hazard.

Reaction time

Any part of a vehicle that holds an occupant in a collision is a __________.

Restraint

A safety brly that a vehicle's occupant must adjust is a _______.

Restraint device

What are four factors that affect braking distance

Speed, vehicle condition, weight, road conditions

A vehicle's Energy of motion will change in proportion to the _______ of its change in speed.

Square

The distance your vehicle travels while stopping.

Total stopping distance


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