Work and Power
Machines
Simple Machines
Simple Machines Continued
Misc
100
What is the transfer of energy when a force is applied over a distance?
Work
100
What is a machine?
A device that makes things easier
100
How many simple machines are there?
6 types
100
How many classes of levers are there?
3
100
What is the lowest point on earth?
Dead Sea
200
What is the work equation?
W=Fd
200
Name 2 of the three ways that machines make work easier.
Change the size of force, change distance of the force, or change direction of the force
200
What is a fulcrum?
The point about which a lever pivots
200
What is an inclined plane wrapped around a cylinder?
Screw
200
In what country would you find Macchu Picchu?
Peru
300
Does time affect work?
No
300
Define Mechanical Advantage
The ratio of a machines output force produced to the input force applied.
300
What is the difference between a wedge and an inclined plane?
Wedges move
300
In a screw driver, what part is the wheel and what is the axle?
Handle: Wheel Shaft: Axle
300
What is the name of the highly protested pipeline in North Dakota that recently ruptured, releasing 210,000 gallons of oil
Keystone Pipeline
400
What is the rate at which work is done?
Power
400
What is effeciency?
the ratio of the output work to the input work multiplied by 100% to get a percent
400
Name a first class lever in your body.
The Neck
400
What is a compound machine?
Two or more simple machines that work together.
400
What is the hottest place on earth
Death Valley
500
Will you have greater or lesser power if you do work slower?
Lesser
500
What is the difference between mechanical advantage and ideal mechanical advantage
Ideal is if you do not consider friction
500
Define a simple machine
They do work using only one movement
500
How do you calculate IMA of a pulley?
How many sections of rope there are.
500
What is the highest mountain in MT?
Granite Peak
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