Chapter 5/6 Study Guide

What effect does driving uphill have on a car's speed when traveling on a mountain road?

• Increases Speed

• Decreases Speed

• Improves Traction

• Does Not Affect Speed

Answer explanation

Driving uphill increases the resistance the car faces, requiring more power to maintain speed, thus decreasing the speed.

How do engineers determine the best placement for the engine in a car design?

• By locating the Center of the Earth

• By analyzing when gravity is pulling on the wheels of the car increasing traction

• By finding the point at which the car's weight is evenly distributed

• By focusing on the exterior design of the vehicle

Answer explanation

Engineers determine the best placement for the engine in a car design by finding the point at which the car's weight is evenly distributed.

A sports car with a low center of gravity is going to...

• Go slower

• Make turns more dangerous

• Perform better

• Make braking more difficult

Answer explanation

A sports car with a low center of gravity is going to perform better because it provides better stability, handling, and control during maneuvers.

When a car is speeding down the highway, it is in motion, and what is this called?

• Gravity

• Friction

• Force of Impact

• Kinetic Energy

Answer explanation

When a car is speeding down the highway, it possesses Kinetic Energy due to its motion. Kinetic Energy is the energy of motion.

How many collisions are there when a car hits a tree?

• 1

• 2

• 3

• None

Answer explanation

When a car hits a tree, there are three collisions: the car collides with the tree, the passengers inside the car collide with the interior, and any loose objects inside the car collide with each other or the interior.

Imagine you're preparing for a long road trip and notice that only the outside portions of your car's tires are in contact with the road. What is this condition called?

• Under inflation

• Over inflation

• Tread

• Split Traction

Answer explanation

The correct condition is under inflation, where only the outside portions of the tires are in contact with the road due to insufficient air pressure.

Imagine you're driving a car on a highway. Which of the following factors does NOT influence the distance it takes to come to a complete stop?

• Speed

• Roadway Surface

• ABS (Anti-Lock Braking System)

• Weight

• Perception Time

Answer explanation

Perception Time is the only factor listed that does NOT directly influence the distance it takes to come to a complete stop when driving a car.

During a routine vehicle safety inspection, which of the following would NOT be classified as a passive restraint device?

• Airbag

• Seat Belt

• ABS

• Soft steering wheel

Answer explanation

The correct choice is ABS because it is an active safety feature, not a passive restraint device like airbags or seat belts.

When a car crashes into a wall, which of the following does NOT influence the force of the impact?

• Speed of the car before the crash

• Weight of the car

• Distance between the car and the wall before braking

• Driver's reaction time to start braking

Answer explanation

The driver's reaction time to start braking does not influence the force of the impact when a car crashes into a wall.

When driving a car, what factors contribute to the total distance it takes to come to a complete stop?

• Total Stopping distance

• Force of Impact

• Traction Control

• Energy of Motion

Answer explanation

Total Stopping distance is the correct factor that contributes to the total distance it takes for a car to come to a complete stop.