A | B |
crowned road | a road higher in the center than on either edge |
safety belt | reduces the effects of inertia |
total stopping distance | perception distance, reaction distance and braking distance |
centrifugal force | pushes a moving object out of a curve and into a straight line |
inertia | a force that keeps objects moving in a straight line |
kinetic energy | energy of motion |
force of impact | the force with which a moving vehicle hits another objects |
traction | friction between a tire and the road |
directional control | the ability of a car to hold a straight line |
What causes people and objects to continue to move in the forward motion after you hit the brakes? | inertia |
At what temperature would traction be the poorest when driving on snow and ice? | 32 degrees |
How do you slow a car using engine braking? | Take your foot off the accelerator. |
Banked Curve | higher on the outside of the curve than the inside of the curve |
What 3 circumstances might cause a skid to occur? | 1. You didn't have enough traction. 2. You tried to change speed too quickly. 3. You changed direction too quickly |
What should you do if you start to skid? | 1. Ease off the gas pedal - DON'T BRAKE! 2. Steer the car in the direction you want to go. |
What should you do if your wheels lock? | Ease up on the brake pedal, and then squeeze down again, but not as firmly. |
Having good tires that are properly inflated and have a good tread is important. How will good tires react to rain? | The water will be forced into the grooves between the treads of the tires. The treads themselves will come in contact with less water and more road surface. |
Braking Skid | You apply the brakes so hard that the brakes lock. |
Power Skid | You step on the accelerator too hard and the car begins to skid. |
Cornering Skid | You lose steering control in a turn, and the car begins to skid |
Blowout Skid | tire suddenly loses air pressure, and the car begins to skid. |
List the four different types of skids. | Braking, Power, Cornering and Blowout |