AnswersPhysical ScienceIntroduction to Forces

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Which best explains parallel forces?

A
left and right forces that can be added together
B
right and upward forces that cancel each other out
C
addition of parallel forces that cannot result in a negative force
D
left and downward forces that cancel each other out
3

Which force best represents cap f sub g ?

A
The amount of upward force of a table on a box is 25 cap n .
B
A weight lifter is pushing a barbell upward with a force of 90 cap n .
C
The weight of a barbell acting on a weight lifter is 80 cap n .
D
A box on a rough table has difficulty sliding past 25 cap n of force.
4

Which best describes two counteracting forces on an object?

A
a group of dogs pulling a dogsled across ice
B
using a dolly to push a box to another location
C
two children pulling apart a wishbone
D
two people pushing a broken-down car up the road
9

Which best explains parallel forces?

A
left and downward forces that cancel each other out
B
right and upward forces that cancel each other out
C
addition of parallel forces that cannot result in a negative force
D
left and right forces that can be added together
10

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

A
two dogs playing tug-of-war with a rope
B
two football players pushing a tackling sled
C
a person pulling out a garden hose from its reel
D
a boy lifting his chest off the ground during a pushup

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