Unit Test — Unit test

Question 1

Lien is pushing a box across a table. She used a force of 100 N to get the box moving. Which force did she overcome to get the box moving?

Revolt · Accepted Answer

the reaction force on the box

Question 2

Which quantity may be calculated directly using Newton’s second law of motion?

Revolt · Accepted Answer

weight

Question 3

A book is sitting on a desk. What best describes the normal force acting on the book?

Revolt · Accepted Answer

the upward force the desk pushes on the book

Question 4

A ball is dropped from rest from the top of a building. What force is responsible for the downward motion of the ball?

Revolt · Accepted Answer

the force of gravity

Unit Test — Unit test Answers