changing an objects position by moving it in the direction of the force being applied.
How do you describe work?
100
The ability to do work.
What is energy?
100
A simple machine
What do you call a tool with few parts that makes it easier or possible to do work?
100
Mechanical advantage
A machine multiplies your effort force by 5 times. What does the number 5 represent?
100
Pulley
A simple machine made up of a rope, chain, or belt wrapped around a wheel.
200
Joule
What is the metric unit of work?
200
Kinetic Energy
What is energy of motion?
200
First class, second class, and third class.
What kind of lever has a fulcrum, resistance arm and effort arm?
200
The effort arm
What is athe distance between the fulcrum and the effort force of a lever?
200
Inclined Plane
A simple machine made up of a ramp, used to lift an object.
300
work = force x distance.
What is the formula for measuring work?
300
Potential Energy
What is stored energy?
300
Fulcrum
A fixed point around which a lever rotates.
300
Resistance force divided by effort force.
How do you find the mechanical advantage of most simple machines?
300
Screw
A simple machine made up of an inclined plane wrapped around a straight piece of metal.
400
Power
The amount of work a person does within a given period of time.
400
Chemical energy, heat energy, mechanical energy, nuclear energy, radiant energy and electrical energy.
What are the six forms of energy?
400
The force applied to the machine you are using to move/lift an object.
What is effort force?
400
8
What is the mechanical advantage of a lever with an effort arm of 16 cm and a resistance arm of 2 cm?
400
Wedge
A simple machine made up of an inclined plane or pair of inclined planes that are moved.
500
Watt
What is the unit used to measure power?
500
Generator
A device used to convert mechanical energy to electrical energy.
500
First class lever.
What kind of lever has the fulcrum between the effort and the resistance and changes the direction of force?
500
Lift your head forward and back - first class
When you stand on your toes - second class
When you hold a weight in your hand with your arm extended - third
Explain how your body is a machine and contain all three levers.
500
Wheel and axle
A simple machine made up of a wheel attached to a shaft.