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45 Cards in this Set

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  • Back
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
Perception time varies according to and drivers, _____, _____ and _________.
attentiveness
physical condition
expirience
Inertia
tendency of vehicle to continue at same speed in a straight line unless acted upon
Gravity
causes vehical to become faster downhill
Energy of motion
energy moving vehicle carries
Traction
friction between tire and road
Momentum
product of weight and speed
Banked road
higher on edges
Directional Control
ability of vehicle to hold straight line
If you begin to skid, you are helpless.
FALSE
Underinflated tires grip the road _____________.
on only the outer edges
The tread of a tire should be _________.
min of 1/16 on and inch
Driving on a bouncy road with potholes makes traction worse.
TRUE
If vehicle weight doubles, momentum doubles.
TRUE
A vehicles center of gravity needs to be low to _________.
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