Lesson 2 Chapter 1 Question Preview (ID: 46537)
Science Review For Lesson 1 Chapter 1 Quiz.
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If a force of 40N was acting on the right of a box and a force of 30N was acting on the left of a box what is the net force if the reference direction was to the right
a) 10
b) -10
c) 70
d) -70
If the net force of an object is 500N and the reference direction is to the right the object would be
a) moving to the right
b) motionless
c) moving to the left
d)
If the net force is 400N is it moving?
a) It is balanced so it is moving
b) It is unbalanced so it is moving
c) It is balanced so it is not moving
d) It is unbalanced so it is not moving
Newton's first law of motion states that if a net force of zero is acting on an object at rest, the object will continue to be
a) motionless
b) moving to the right
c) moving to the left
d)
A moving object subjected to a zero force will continue in a _________ line at a _________ speed
a) curved, faster
b) straight, slower
c) straight, constant
d) curved, constant
If an object had a net force of zero it would be
a) inertia
b) balanced force
c) unbalanced force
d) Netwon's Law of Motion
A force exerted in a direction is ___________ and a force exerted in the opposite direction is ________
a) negative, negative
b) positive, postive
c) positive, negative
d) awesome, even more awesome
If there were no friction, a moving object would keep moving, even if no other forces were applied to it
a) True
b) False
c)
d)
to find the next force you must specify the direction in which each forces are acting
a) False
b) True
c)
d)
Even though a net force may be positive it may also be negative depending on the reference direction
a) True
b) False
c)
d)
If the reference direction is to the left determine the net force of the object if a force of 90 N is acting on the object to the left and a force of 65 N is acting on the object to the right
a) 30 N
b) 155 N
c) 25 N
d) - 25 N
What would happen to an object that is at rest and had a unbalanced force acting upon it to the right
a) It would not move
b) It would move to the left
c) It would move to the right
d) It would move up
To find the net force you....
a) add all of the forces acting upon the object
b) subtract all of the forces acting upon the object
c) add all of the forces acting on the object and divide by 2
d) add all of the forces acting on the object and subtract 4
Two people apply forces to object A, each apply a force of 50N. Two different people apply 50 N to a different object (Object B). However the next forces acting on object A are different than those acting on Object B. What happened?
a) The people weight different amounts
b) The objects are different weights
c) The people were applying their forces on different sides of the objects changing the net forces
d) The people were applying forces the same but they weigh differently and were applying the same force to different objects
Inertia
a) The tendency for an object to resist a change in its motion
b) The tendency for an object to want to change its motion
c) The ability for an object to change its speed
d) The change in motion
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