Force And Motion 1 Question Preview (ID: 56005)
Force And Motion.
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An object is in motion if
a) The mass changes
b) The distance changes from the reference point
c) The weight changes
d) The size changes
The reference point is the object that you use to determine if an object is in motion
a) true
b) false
c)
d)
A force is a
a) Push
b) Pull
c) Both a push or a pull
d) neither a push or a pull
What do you need to describe a force?
a) Strength
b) Direction
c) Both the strength and direction
d) neither the strength or direction
What units do we measure a force in?
a) Pounds
b) watts
c) Newtons
d) Kilograms
A contact force is a push or a pull where you DO NOT touch the object.
a) true
b) false
c)
d)
A contact Force is a push or a pull where you DO touch the object.
a) true
b) false
c)
d)
A non-contact Force is a force where you put a push or a pull on an onbject without touching it.
a) true
b) false
c)
d)
A non-contact force is a force where you put a push or a pull on the object while touching it.
a) true
b) false
c)
d)
Which one is a non-contact force?
a) Gravity
b) Electricity
c) Magnetism
d) all of these
Which ones is not a contact force?
a) Pulling a wagon
b) Throwing a baseball
c) chewing gum
d) Gravity pulling a book to the ground
Friction is a
a) Contact force
b) non-contact force
c)
d)
Friction occurs when an object is rubbing against another object.
a) true
b) false
c)
d)
Friction always acts
a) In the same direction as the motion
b) in the opposite doirection of the motion
c)
d)
Gravity will
a) Cause objects to get closer together.
b) cause objects to get further apart.
c)
d)
Equal forces in opposite directions is a
a) balanced force
b) unbalanced force
c)
d)
Which one will change an object's motion?
a) balanced force
b) unbalanced force
c)
d)
A net force is the total forces acting on an object.
a) true
b) false
c)
d)
What is the net force of 20 N Left and 20 N Right
a) 40 N left
b) 40 N right
c) Zero N
d) 10 N up
What is the net force of 5 N East and 2 N west
a) 7 N west
b) 7 N East
c) 3 N East
d) 3 N west
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