Test 1D WITH KEY

# A a becauseyourdirectionofmotioniscontinuouslycha

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: n’t strong enough to make them move b. they have inertia c. gravity holds them in place d. the beans are stuck together Test 1 ‐ 4 March 2013 Question 20 – You have two cars, and the larger one is five ti mes as massi as the smaller one. You and ive a friend push on them so that their accelerations are equal. The force on the smaller car is ___________ that on the larg er car. a. equal to b. 1 5 times c. 8 4 d. 1 5 times 25 times Question 21 – Two ants, Bert and Ernie, are riding on a recor d that rotates at 33⅓ rpm. They don’t walk. Ernie is closer to the center than Bert. Bert Ernie 33⅓ rpm Who has the greatest angular speed? a. i t depends on the record’s rotational mass b. B ert c. E rnie d. t heir angular speeds are equal Question 22 – Why is your velocity continuously changing as you ride on a carousel? a a. because your direction of motion is continuously cha nging b. it doesn’t, unless you are on a carousel animal which is constantly moving up and down c. it doesn’t, because your...
View Full Document

## This document was uploaded on 03/13/2014 for the course PHYSICS 115 at UNL.

Ask a homework question - tutors are online