DRIVERS ED LESSON 4 - PHYSICS NATURAL LAWS EXAM

PDF Download DRIVER'S ED LESSON 4 - PHYSICS & NATURAL LAWS EXAM

QUESTIONS

Qs and Ans Expert- Explanation

This Exam contains:

-Guarantee passing score -9 Questions and Answers -format set of multiple-choice -Expert- Explanation Question 1: centrifugal force:

• makes your car turn better
• doesn't really exist
• makes you go straight on a highway
• is a powerful natural force of nature

Answer:

• doesn't really exist

Question 2: how long will it REALLY take to stop (reaction time included)?

Answer:

[(speed * 1/10speed) / 2] + (speed + 1/2speed) = total stopping distance after brakes are applied.Question 3: According to the formula for stopping distance, how many feet will it take you to stop, from 60 mph?

• 180

• 120
• 360
• 600

Answer:

• 180

Question 4: the primary factor in decreasing the Kinetic Energy of an object is to:

• decrease the stopping distance
• decrease the mass
• decrease the direction
• decrease the velocity

Answer:

• decrease the velocity

Question 5: formula for kinetic energy

Answer:

KE = 1/2M * V

Question 6: how fast am i going?

Answer:

speed + 1/2speed = speed in feet per second Question 7: the best way to maximize the traction of your tires is to:

• slightly underinflate them
• slightly overinflate them
• inflate them to the recommended pressure
• none of the answers

Answer:

• inflate them to the recommended pressure

Question 8: gravity:

• has no effect on your car, since it will always weigh the same
• none of the answers
• has a constant effect on your car, its' traction and it's speed on hills
• is only important on mountain roads

Answer:

• has a constant effect on your car, its' traction and it's speed on hills

Question 9: how long will it take to stop?

Answer:

(speed * 1/10speed) / 2 = stopping distance after brakes are applied.