Chapter 9 drivers ed pearson
blowout
a bald tire, which is a sudden loss of air pressure in the tire
banked curve
a curve that is higher on the outside
center of gravity
a point around which an object's weight is evenly distributed
passive restraint device
a restraint device, such as an air bag, that works automatically and the occupant does need to fasten
active restraint device
a safety belt that a vehicle's occupant must adjust
pitch
a tilting motion from front to back
restraint device
any part of a vehicle that holds an occupant in a collision
energy of motion
kinetic energy
Inertia
Objects at rest tend to stay at rest, and objects in motion tend to stay in motion
Gravity
The force that pulls vehicles towards earth
force of impact
force with which one moving object hits another
perception distance
the distance traveled while you identify your situation
braking distance
the distance your vehicle travels from the time you apply the brakes until your vehicle stops
total stopping distance
the distance your vehicle travels while stopping
reaction distance
the distance your vehicle travels while you identify and react to a hazard
vehicle balance
the distribution of a vehicle's weight in its tires as they contact the ground
traction
the friction which allows tires to grip the roadway
friction
the gripping action that keeps tires from slipping
tread
the grooved surface of a tire that grips the roadway
reaction time
the length of time you take to execute your action in response to a hazard after you identify it
momentum
the tendency of an object to stay in motion or the inertia of an object in motion
perception time
the time it take you to identify, predict, and decide to slow for a hazard
energy of motion
when an object moves, it uses kinetic energy which is...