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Biblioteka

3.1 - Free Body Diagrams

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Posljednje ažuriranje over 3 years ago
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Question 1
00:37
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Question 2
00:40
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Question 3
00:47
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Question 4
00:55
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Question 5
01:01
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Question 6
01:37
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Question 7
02:01
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Question 8
02:17
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Question 9
02:24
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Question 10
02:46
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Question 11
02:51
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Questions 12 & 13
03:02
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Question 14
03:22
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Question 15
03:29
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Question 16
03:42
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Question 17
04:05
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Pitanje 18
18.

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

Pitanje 19
19.

Name the missing force...

Pitanje 20
20.

Name the missing force...

Pitanje 21
21.

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...

Pitanje 22
22.

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

Pitanje 23
23.

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

Pitanje 24
24.

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

Pitanje 25
25.

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

Pitanje 26
26.

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

Pitanje 27
27.

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?

Pitanje 28
28.

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

Pitanje 29
29.

What is the net force?

Pitanje 30
30.

Balanced or unbalanced?

Pitanje 31
31.

What is the NET FORCE of this diagram?

Pitanje 32
32.

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

Pitanje 33
33.

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

Pitanje 34
34.

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

Pitanje 35
35.

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

Pitanje 36
36.

What is the net force?

Pitanje 1
1.

The force of gravity points .

Word Bank:

upward

sideways

downward

adjacent

on top of

Pitanje 2
2.

Normal force acts..

Pitanje 3
3.

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

Word Bank:

equal

minus

subtracted

rest

sublimation

cornered

Pitanje 4
4.

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

Pitanje 5
5.

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)

Pitanje 6
6.

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

Word Bank:

balanced

unbalanced

force

velocity

momentum

shipped

Pitanje 7
7.

What force is acting against the rightward force...

Pitanje 9
9.

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)

Pitanje 10
10.

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

Word Bank:

friction

Pitanje 11
11.

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

Pitanje 12
12.

Draw and label the free body diagram for this situation.

"A skydiver is descending with constant velocity".

Pitanje 13
13.

Draw and label the free body diagram for this situation.

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

Pitanje 14
14.

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

Pitanje 15
15.

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

Pitanje 16
16.

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

Pitanje 17
17.

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