Formulas
Types of Machines
Lever Classes
Info About Machines
Units
100
M x A
What is the formula for force
100
A large wheel rigidly secured to a smaller wheel or shaft, called an axle
What is wheel and axle
100
In this lever, the fulcrum is located at some point between the effort and resistance forces
What is first class lever
100
Before these were invented, people had to do things like lifting or pushing heavy loads by hand
What is engines and machines
100
The unit for force
What is newton
200
F x d
What is the formula for work
200
grooved wheel that turns freely in a frame called a block
What is pulley
200
With this lever, the effort is applied between the fulcrum and the resistance force
What is third class lever
200
This is the ratio of the output force divided by input force
What is mechanical advantage
200
The unit for distance
What is meters
300
W/t
What is the formula for power
300
even sloping surface
What is inclined plane
300
With this lever, the load is located between the fulcrum and the effort force
What is second class lever
300
No machine can increase both the what and the what of a force at the same time.
What is magnitude and distance
300
the unit for work
What is newton-meters
400
Mass and acceleration is needed to calculate this
What is needed to calculate work
400
modification of the inclined plane, two inclined planes pressed against each other.
What is wedge
400
An example of a first class lever
What is crowbars, scissors, pliers, tin snips, seesaws, etc
400
The mechanical advantage of an inclined plane is equal to the what divided by the height of the inclined plane
What is length of slope
400
The unit for work
What is joules
500
Work and time is needed to calculate this
What is needed to calculate power
500
modified version of the inclined plane, in a circular ramp fomation
What is screw
500
An example of second class lever
What is nut crackers, wheel barrows, doors, bottle openers, etc
500
The wedge can either be composed of how many inclined planes
What is one or two
500
The unit for power
What is watt
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