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45 Cards in this Set
- Front
- Back
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Can oil, dirt and water reduce traction?
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YES!
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Force that resists th motion of one surface against another
(Applying brakes) |
FRICTION
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A vehicle with a high center of gravity is easier to drive than a low center of gravity.(T of F)
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FALSE
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Perception time is reduced by limited visibility.
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TRUE
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The sharper the curve, the more _________.
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Centrifugal force.
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Stopping on a downgrade is more difficult than stopping on a flat surface.
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TRUE
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An increase in spedd also increases a vehicle's energy of motion.
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TRUE
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If a car traveling 40 mph weighs the same as a car driving tim mph, its energy of motion is ______ times greater.
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TWO
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When turining, gravity and friction must be strong enough to overcome ________.
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Centrifugal force.
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The space it takes your car to stop once you have identified a hazard is _____.
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reaction time.
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The distance your car travels from the time yuo hit the brake until the car stops
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Braking distance
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The faster the car is moving, the greater its ___________.
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energy of motion
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Perception + reaction + braking dist =
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total stopping distance
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Middle of road is higer than sides.
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Crowned road
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Keeps you behind wheel in emergency
Reduces force on passengers in collision |
Seatbelt
Airbags |
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Perception time varies according to and drivers, _____, _____ and _________.
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attentiveness
physical condition expirience |
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Inertia
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tendency of vehicle to continue at same speed in a straight line unless acted upon
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Gravity
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causes vehical to become faster downhill
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Energy of motion
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energy moving vehicle carries
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Traction
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friction between tire and road
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Momentum
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product of weight and speed
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Banked road
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higher on edges
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Directional Control
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ability of vehicle to hold straight line
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If you begin to skid, you are helpless.
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FALSE
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Underinflated tires grip the road _____________.
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on only the outer edges
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The tread of a tire should be _________.
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min of 1/16 on and inch
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Driving on a bouncy road with potholes makes traction worse.
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TRUE
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If vehicle weight doubles, momentum doubles.
|
TRUE
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A vehicles center of gravity needs to be low to _________.
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be safe
|
|
|
A yellow diamond with a cow means __________.
|
Livestock could enter the road
|
|
|
Can oil, dirt and water reduce traction?
|
YES!
|
|
|
Force that resists th motion of one surface against another
(Applying brakes) |
FRICTION
|
|
|
A vehicle with a high center of gravity is easier to drive than a low center of gravity.(T of F)
|
FALSE
|
|
|
Perception time is reduced by limited visibility.
|
TRUE
|
|
|
The sharper the curve, the more _________.
|
Centrifugal force.
|
|
|
Stopping on a downgrade is more difficult than stopping on a flat surface.
|
TRUE
|
|
|
An increase in spedd also increases a vehicle's energy of motion.
|
TRUE
|
|
|
If a car traveling 40 mph weighs the same as a car driving tim mph, its energy of motion is ______ times greater.
|
TWO
|
|
|
When turining, gravity and friction must be strong enough to overcome ________.
|
Centrifugal force.
|
|
|
The space it takes your car to stop once you have identified a hazard is _____.
|
reaction time.
|
|
|
The distance your car travels from the time yuo hit the brake until the car stops
|
Braking distance
|
|
|
The faster the car is moving, the greater its ___________.
|
energy of motion
|
|
|
Perception + reaction + braking dist =
|
total stopping distance
|
|
|
Middle of road is higer than sides.
|
Crowned road
|
|
|
Keeps you behind wheel in emergency
Reduces force on passengers in collision |
Seatbelt
Airbags |
