30.6 STS Work and Machines Part1
Presentation
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Science
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Professional Development
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Practice Problem
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Easy
+8
Standards-aligned
Hilary Donahue
Used 1+ times
FREE Resource
15 Slides • 27 Questions
1
2
3
4
Multiple Choice
What is energy?
5
Multiple Choice
What are examples of change? Choose the best answer
moving,
changing shape,
changing temperature.
all of the above
6
7
8
Multiple Choice
What is work (in physics)?
Work in physics is the use of force to move an object
9
Multiple Choice
What is power?
Power is a measure of the amount of work that can be done in a given amount of time.
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Multiple Choice
What is a machine?
A machine is any device that makes work easier by changing a force.
12
Multiple Choice
What is it called whenever a force moves an object over a distance?
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Multiple Choice
What kind of simple machine is a broom?
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16
Multiple Choice
What is a lever?
A mathematical concept
A type of simple machine
A complex tool
A form of energy
17
Multiple Choice
In a first class lever, where is the fulcrum located?
Between the force and the load
On one end
In the middle
On the opposite end of the force
18
Multiple Choice
Which of the following is an example of a second class lever?
Scissors
Hockey stick
Wheelbarrow
Hammer
19
Multiple Choice
How many classes of levers are there?
Two
Three
Four
Five
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Multiple Choice
What is the primary function of a lever?
To change the direction of the applied force
To decrease the amount of effort needed to move an object
Both A and B
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Multiple Choice
A lever decreases the amount of effort you need to put into moving an object by
increasing the distance from the fulcrum
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Multiple Choice
Scissors are made of which two simple machines?
25
Multiple Choice
What is a fulcrum?
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Multiple Choice
What is our next activity?
The next activity is to calculate our own horsepower.
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Multiple Choice
Who is pictured on this slide?
Mrs. D's supercute grandchild
Not this answer!
30
Multiple Choice
What is work?
Work is the use of force to move an object
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Multiple Choice
What is force?
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Multiple Choice
When it comes to the motion of everyday objects, however, the forces are mainly
Interactions such as gravity, friction, and applied force.
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Multiple Choice
What is applied force?
Force that a person or thing applies to an object.
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Multiple Choice
What is the unit of force?
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Multiple Choice
What is the unit for work?
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Multiple Choice
Explain the Joule
The Joule is the amount of work that is done when 1 N of force moves an object over a distance of 1 m.
39
Multiple Choice
Work is directly related to both the
force and distance/displacement
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Multiple Choice
What is the equation for work?
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Multiple Choice
What is power?
Power is a measure of the amount of work that can be done in a given amount of time.
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