Terms
Work,power and energy
Kinetic and potential energy
Simple machines
Random
100
A simple machine that is a straight. slanted surface
What is an inclined plane
100
In calculating work and energy we use what unit
What is a Joule
100
What are the two factors that play a role in kinetic energy?
What is mass and speed
100
Any device that helps people do work or change the way work is done is called what?
What is a machine
100
A simple machine that has a grooved wheel that holds a rope or cable is called what?
What is a pulley
200
The energy possessed by an object due to its motion and position
What is mechanical energy
200
What is the equation to figuring out power
What is power equals energy(work) divided by time
200
This type of energy when it is stretched or compressed
What is elastic energy
200
The force you apply to a machine through a distance is called what?
What is input force
200
The mechanical advantage of a simple machine that does not take friction into account is called what?
What is ideal mechanical advantage
300
The fixed point in a lever
What is fulcrum
300
When calculating power what unit do we use?
What is a watt
300
The result of chemical bonds is this type of energy
What is chemical energy
300
A stapler is this type of simple machine
What is a second class lever
300
The number of times the machine multiplies the input force is called what?
What is mechanical adavantage
400
The energy of motion
What is Kinetic energy
400
The rate at which work is done is called what?
What is power
400
What is the equation for figuring out mechanical energy?
What is a half times mass times speed squared plus mass times gravity times height
400
A pair of inclined planes that move is what simple machine?
What is a wedge
400
The work done by the machine on an object is called what?
What is work output
500
The comparison of a machine's work output with the work input
What is mechanical efficiency
500
How are energy and work related?
What is energy is the ability to do work and work transfers energy.
500
This type of energy refers to the position above the ground
What is gravitational potential energy
500
The force a machine exerts on an object is called what?
What is output force
500
The work you do on a machine is called what?
What is work input
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