Simple Machines Flashcards
An inclined plane works by _________ your input force over a _______
Spreading out, distance
What is the scientific term for ramp
Inclined plane
In order to do ________ an object, the object must move some _______ as a result of ____
Work, distance, force
Work is measured in______
Joules
When you use a ramp, the _____________ needed to move an object will always be the ____
Total amount of work, same
What are the 6 kinds of simple machines.
- inclined plane.
- wedge
- screw
- lever
- wheel
- axle
How can you tell the IMA of an inclined plane
You divide the length of the in line by its height
Input force = force with which you _______________
Push or pull
Output force = force you would need to lift an object _______ an inclined plane
Without
Work is lost due to ________ between the object and ___________
Friction, inclined plane
How would you draw a wedge
\ /
\ /
\/
Can I go
Yeeeesssss
A screw is an inclined plane _________ around a ________
Wrapped, cylinder
When you increase the ________ the object travels, the _____ force needed to move the object is _____ meaning less ______ can be exerted by the mover to complete the same amount of work
Distance, input, decreased, effort
In all _______ MA is the ratio of ______ force to ____ force
Simple machines, output, input
Are there units in IMA? If not where did they go……. Dun dun duuuuunnnnnn
No. They cancel out
The closer the threads the _______ the MA
Greater
A lever is a _____ bar that is free to _____or rotate, around a fixed point or fulcrum
Rigid, pivot
How levers help
- _______ effect of your input force
- Changes the ________ of your input force
Increases, direction
First class lever Can multiply \_\_\_\_\_ or \_\_\_\_\_\_\_ depending on distance of fulcrum to input force, and changes direction of \_\_\_\_\_ force
Force, distance, input
Second class lever Always \_\_\_\_\_\_\_ force Does NOT change \_\_\_\_\_\_\_ of input force
Multiply, direction
Third class lever Multiplies \_\_\_\_\_\_\_\_ but does NOT change \_\_\_\_\_\_\_
Distance, direction
What are a wheel and axle made of and how many are their
Cylinders, 2
Is the diameter of the wheel or the axle bigger
Wheel
When you apply ______ force to turn the wheel the axle turns an exerts an ______ force
Input, output
What is a pulley
A grooved wheel with rope or cable wrapped around it
When you pull the rope you can change the amount and ________ of your ______ force
Direction, input
Work= _____x____
Distance, force
A _______ is anchored to the structure
Fixed pulley
MA of a fixed pulley=
1
A _______ is attached to the object that is moved
Moveable pulley
MA of movable pulley=
2
What happens as you add new lengths of rope to a block and tackle
It gets easier to lift
