In a force diagram, or free-body diagram, the size/length of the arrow tells you this about the force:
a)
relative strength
b)
relative distance
c)
relative direction
3.
Which of the following is true about this free-body diagram?
a)
the forces are are balanced
b)
the object is free-falling
c)
the object is moving upward
d)
the forces are unbalanced
4.
In a force diagram, or free-body diagram, the pointy-end of the arrow tells you this about the force:
a)
relative strength
b)
relative distance
c)
relative direction
5.
When determining the NET force on an object you should (TWO correct answers)
a)
subtract forces in opposite directions
b)
add forces in the same direction
c)
divide by velocity
d)
multiply by acceleration
6.
Name the missing force...
a)
weight force
b)
normal force
c)
applied force
d)
frictional force
7.
A hockey puck glides to the right across the ice at a constant speed.
a)
b)
c)
d)
8.
The down-arrow in this diagram is most-likely:
a)
gravity
b)
normal
c)
a push or pull
d)
friction
9.
If this object were moving right, the left-arrow in this diagram is most-likely:
a)
gravity
b)
normal
c)
a push or pull
d)
friction
10.
The force exerted by ropes and chains is called
a)
tension
b)
normal
c)
elastic
d)
mechanical
11.
The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:
a)
normal
b)
abnormal
c)
static
d)
inertia
12.
Match description with free-body diagram.
a)
A book is at rest on a tabletop.
b)
A gymnast holding onto a bar, is suspended motionless in mid-air. The bar is supported by two ropes that attach to the ceiling. Diagram the forces acting on the combination of gymnast and bar.
c)
An egg is free-falling from a nest in a tree. Neglect air resistance.
d)
A flying squirrel is gliding (no wingflaps) from a tree to the ground at constant velocity. Consider air resistance.
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