Introduction to Forces

Question 1

Two boxes need to be moved into storage. Jamal and Jude each want to move a box. The force of gravity on both the boxes is 50 N. Jamal is lifting with a force of 60 N, and Jude is lifting with a force of 45 N.

Revolt · Accepted Answer

Jamal moved his box to storage, but Jude could not move his.

Question 2

Which is the best example of forces acting in the same direction?

Revolt · Accepted Answer

two football players pushing a tackling sled

Question 3

Which force best represents Fg?

Revolt · Accepted Answer

The weight of a barbell acting on a weight lifter is 80 N.

Question 4

Which best describes two counteracting forces on an object?

Revolt · Accepted Answer

two children pulling apart a wishbone

Question 5

Polly is pushing a box to the right across the floor with a force of 30 N. The force of gravity is 8 N, and the normal force is 8 N. Which value could describe the force of friction if Polly could not move the box?

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/evresources/d4d62b26e4c825591c75fb0efdafc8f5.png

Question 6

Which units are used to measure force?

Revolt · Accepted Answer

newtons

Question 7

The table represents the forces on four objects, with directions.ObjectF1 ↑F2 →F3 ←F4 ↓W30 N20 N20 N30 NX15 N35 N25 N15 NY60 N0 N0 N60 NZ45 N0 N22 N45 N

Revolt · Accepted Answer

Objects W and Y have balanced forces, and objects X and Z have unbalanced forces.

Question 8

Haley is trying to pull an object upward. The below forces are acting on the object.Fp= 5500 NFg= 6000 N

Revolt · Accepted Answer

↓ 500 N

Question 9

An object is moving across a surface, but it does not gain or lose speed. Which best describes the object’s force?

Revolt · Accepted Answer

The net force is zero.

Question 10

Jill is pushing a box across the floor. Which represents the upward force perpendicular to the floor?

Revolt · Accepted Answer

FN

Introduction to Forces Answers

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