Driver Education Iowa 5 Natural Laws and Car Control
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
