Transcript Free Body Diagrams 200

Physics Jeopardy
Review for the Mechanical
Equilibrium Test
Free Body
Diagrams
Vectors/Sc
Equilibrium?
alars
Forces
100
100
100
100
100
200
200
200
200
200
300
300
300
300
300
400
400
400
400
400
500
500
500
500
500
Miscellaneous
FJ
Free Body Diagrams 100
A car is driving at a constant speed
down the freeway. Draw a free
body diagram.
Answer
Free Body Diagrams 200
Identify all forces acting on this
Hover disc as it moves across the
table at a constant speed.
Answer
Free Body Diagrams 300
A person is pushing a hockey puck across
ice at a constant speed. What force
vector is missing from the diagram?
Direction of Travel
Answer
Free Body Diagrams 400
A roosterdog is accelerating as he
is running away from a roosterdog
catcher. Draw an accurate free
body diagram of the roosterdog.
Answer
Free Body Diagrams 500
If the scaffolding weighs 600 N and
the paint bucket weights 200 N,
how much does Burl weigh?
Answer
Forces 100
A 20-N force and a 35-N force
act on an object in opposite
directions. What is the net force
on the object?
Answer
Forces 200
What is the minimum resultant
possible when adding a 15-N
force to a 25-N force?
Answer
Forces 300
The weight of a buffalo can be represented by a
vector that acts:
a. Perpendicular to the ground below the buffalo
b. Parallel to the ground
c. Straight down
d. Weight is not a vector
Answer
Forces 400
A dictionary (mass 1.0 kilogram)
lying on a stationary table
exerts a force of 9.8 newtons
on the table. The force exerted
on the dictionary by the table is
how many newtons?
Answer
Forces 500
What is the resultant vector that describes the
overall force on Pikachu?
Answer
Vectors/Scalars 100
What does a vector quantity have
that a scalar quantity does not?
Answer
Vectors/Scalars 200
Name two examples of vectors
and two examples of scalars.
Answer
Vectors/Scalars 300
Forces in a diagram are represented by
the following scale: 1 centimeter equals
5 newtons.
To represent a force of 20 newtons, the
length of an arrow drawn should be
how many centimeters?
Answer
Vectors/Scalars 400
The diagram below represents a force
acting at point P.
Which of the following pair of forces
could represent the x and y
components of this force?
Answer
Vectors/Scalars 500
If I have a 5 N force acting east on
an object and a 12 N force acting
north on the same object, what is
the resultant force on that object?
Answer
Equilibrium? 100
If an object is moving at a
constant velocity, what type of
equilibrium is it in?
Answer
Equilibrium? 200
Assuming Nellie
weighs 400
newtons, what is
the reading on
each of these two
scales?
Answer
Equilibrium? 300
Danny holds a rooster at rest in his outstretched
hand. The force he applies to the rooster is
a. equal to the weight of the rooster
b. is slightly less than the weight of the rooster
c. is slightly more than the weight of the rooster
d. is zero, until he drops the rooster
Answer
Equilibrium? 400
You weigh 300 newtons. When
you stand on two bathroom
scales, one foot on each scale
with weight evenly distributed,
how much will each scale read?
Answer
Equilibrium? 500
Is Mewtwo in equilibrium? If not, in which general
direction will he accelerate when the following forces are
applied?
Answer
Miscellaneous 100
What are the horizontal and
vertical pieces of a vector called?
Answer
Miscellaneous 200
What is the overall distance
traveled by the clown?
Answer
Miscellaneous 300
Nellie is hanging from the rope as shown. Which side
of the rope is more likely to break?
A. The Left
B. The Right
C. 50/50 Chance of Either One
Answer
Miscellaneous 400
What is the overall displacement of the clown?
Answer
Miscellaneous 500
If the weight
of the iron
block is 500
N, what is
the tension
in the rope
pulling on
the crate?
Answer
Free Body Diagrams 100
Direction of Travel
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Free Body Diagrams 200
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Free Body Diagrams 300
Direction of Travel
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Free Body Diagrams 400
Direction of Travel
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Free Body Diagrams 500
Burl weighs 400 N because everything in this system
is balanced.
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Forces 100
15 N
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Forces 200
10 N
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Forces 300
C.
(Weight always acts
straight down)
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Forces 400
9.8 N
(since we’re in
equilibrium)
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Forces 500
12 N north
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Vectors/Scalars 100
Direction
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Vectors/Scalars 200
Vectors:
Velocity & Force
Scalars:
Time & Temperature
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Vectors/Scalars 300
4 cm
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Vectors/Scalars 400
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Vectors/Scalars 500
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Equilibrium? 100
Dynamic
Equilibrium
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Equilibrium? 200
400 N
each
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Equilibrium? 300
A. Equal to the
weight of the
rooster
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Equilibrium? 400
Each scale reads
half your weight,
or 150 N
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Equilibrium? 500
No, he will
accelerate
southeast
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Miscellaneous 100
Components
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Miscellaneous 200
70 meters
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Miscellaneous 300
The right side is
more likely to
break (there is
more tension
on the right).
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Miscellaneous 400
50 meters east
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Miscellaneous 500
500 N
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Final Jeopardy Category
Rapid fire true and false. You
need to get at least 4 of these
right to earn back your wager.
1. Speed is a vector quantity.
2. An object in dynamic equilibrium is accelerating
constantly.
3. A vector acting at an angle can be represented by two
component vectors.
4. The net force is a combination of all forces that act on an
object.
5. The support force is always directed straight up.
6. Equilibrium occurs when at least the left and right forces
are balanced.
7. The number of forces that act on an object in free fall
(including air resistance) is 1.
1. Speed is a vector quantity. (FALSE)
2. An object in dynamic equilibrium is accelerating
constantly. (FALSE)
3. A vector acting at an angle can be represented by two
component vectors. (TRUE)
4. The net force is a combination of all forces that act on an
object. (TRUE)
5. The support force is always directed straight up. (FALSE)
6. Equilibrium occurs when at least the left and right forces
are balanced. (FALSE)
7. The number of forces that act on an object in free fall
(including air resistance) is 1. (TRUE)
Good Luck!
Don't forget to finish up your note
sheet tonight. If you had any trouble
with questions in this review game,
look at them again tonight.