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