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3.1 - Free Body Diagrams

Last updated almost 3 years ago
36 questions
1
The force of gravity points _______.

Word Bank:
upward
sideways
downward
adjacent
on top of
1

Normal force acts..

1
When gravity and normal force are _______, the box will remain at _______.

Word Bank:
equal
minus
subtracted
rest
sublimation
cornered
1
When normal force equals gravity, the forces are _______ and the net force acting on the object is _______.

Word Bank:
unbalanced
100 N
zero
balanced
90 N
1

Draw and label the free body diagram for this situation.

"A rightward force is applied to the box in order to move it across the table with rightward acceleration." (ignore air resistance)

1
Acceleration exists when _______ is changing, and when that occurs the forces acting on the object are _______.

Word Bank:
balanced
unbalanced
force
velocity
momentum
shipped
1

What force is acting against the rightward force...

1
1

Draw and label the free body diagram for this situation.

" A box on the table is moving towards the right at constant velocity." (Ignore Air Resistance)

1
In this example, the applied force is equal to _______ force. The size of the two arrows will be drawn as the _______.

Word Bank:
friction
1
Because of the _______ force being zero (friction = applied force). The object (body) will move at that _______ velocity.
1

Draw and label the free body diagram for this situation.

"A skydiver is descending with constant velocity".

1

Draw and label the free body diagram for this situation.

"An egg is falling from a nest in a tree".

1
Because of the table not existing, there will be no _______ force holding him up. Nor is there applied force.

Word Bank:
normal
abnormal
mega
friction
1

The sky diver is falling at a constant velocity which implies that the...

1
As the velocity is _______ in this case , it implies that air resistance and the force of _______ are equal.


Word Bank:
not nice
weird
gravity
constant
variable
1
As the egg is free falling from the nest, it means the egg is _______. The magnitude of the gravitational force will be _______ than the air resistance, since this is acceleration and not _______ velocity.


Word Bank:
accelerating
less
velocity
more
equal
1

What does the F stand for on a free-body diagram?

1

Name the missing force...

1

Name the missing force...

1

A man pushes a box across the floor at a constant velocity. There is a force on the box pulling it toward the center of the earth. This is called the...

1

The down-arrow in this diagram is most-likely:

1

If this object were moving right, the left-arrow in this diagram is most-likely:

1

Which of the following is true about this free-body diagram?

1

Whenever an object is moving, there is always this force opposing the motion:

1

"If we apply a ___________ to an object, its __________________ will change and it will  ______________."

1

Use the picture as reference. If the force of the girl pushing is 30N, and the force of the boy who is also pushing is 30N, what is the net force?

1

Which diagram best shows person pushing a couch (accelerating) across the floor?

1

What is the net force?

1

Balanced or unbalanced?

1

What is the NET FORCE of this diagram?

1

A rightward force is applied to a dresser to accelerate it to the right across the bedroom floor.

1

A hockey puck glides to the right across the ice at a constant speed.

1

Which free body diagram best represents a bookbag resting on the classroom floor?

1

Which freebody diagram best represents a desk being pushed across the classroom floor?


1

What is the net force?