Physics 1603 Exam Chapter 5-7 Review Quetsions and Answers 2023

A ball is thrown straight up. At what point does the ball have the most energy? - -Everywhere; the energy of the ball is the same at all points. -A man pushes a block up an incline at a constant speed. As the block moves up the incline - -its potential energy increases and its kinetic energy remains the same. -You push very hard on a heavy desk, trying to move it. You do work on the desk - -only if it starts moving -When the speed of your car is doubled, by what factor does its kinetic energy increase? - -4 -A car traveling at a velocity v can stop in a minimum distance d. What would be the car's minimum stopping distance if it were traveling at a velocity of 2v. - -4d -A car accelerates from rest to 30 km/h. Later on the highway it accelerates from 30 km/h to 60 km/h. Which takes more energy? - -30 to 60 km/h -A ball is thrown straight up. At what point does the ball have the max kinetic energy? - -when it is first thrown & just before it hits the ground. -If larger-diameter tires are mounted on the car instead, how will that affect the speedometer reading? The speedometer - -will read low -A boy and a girl are riding on a merry-go-round which is turning at a constant rate. The boy is near the outer edge, and the girl is closer to the