Work Power Simple Machines

A fishing pole is an example of a compound machine. What simple machines are used to make up this compound machine?

• lever, wheel and axle, pulley
• wheel and axle, inclined plane, pulley
• wheel and axle, pulley, inclined plane

If an object is too heavy to move up a ramp, what is the best way to fix the problem?

• Increase the slope of the ramp
• Increase the elevation of the ramp
• Increase the length of the ramp
• Increase the friction of the ramp

Tags

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How are Horsepower and watts similar?

• both units of work.
• they are both useless
• They are both the si units of work
• they are both units of power

Machine changes all but ?

• Distance 
• Size of a force needed
• The direction of a force
• Having to increase input force if you want the output force to increase.

what is work input?

• The work done by the input force acting through the input distance
• The force you exert on a machine 
• The distance the input force acts through is known as the input distance.
• Horsepower

Tags

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What is input distance?

• The work done by the input force acting through the input distance
• The distance the input force acts through is known as the input distance.
• The force you exert on a machine 
• Watts

What is the SI unit of power?

• Watt
• Joule
• Horsepower
• force

What is a wedge?

• A combination of two or more simple machines that work together.
• A v shaped object whose sides are two inclined planes sloped toward each other
• A combination of two or more simple machines that work together.

All of the following describe situations in which work is done by an organism EXCEPT for which situation?

• A bird carries a worm to it's nest
• A squirrel hides a nut in a tree
• Ants bring crumbs into their homes
• Leave decompose on the forest floor

units for work are

• netwons
• joules
• meters
• seconds