Simple Machines Flashcards
Force is a unit called the ___
Newton
Amount of matter in an object
MASS
The number of times a machine multiplies your effort.
Mechanical Advantage (MA)
Types of machines that do work with one movement.
Simple Machines
What are the 6 simple machines?
- Inclined Plane
- Lever
- Wedge
- Screw
- Pulley
- Wheel & axle
The number of ropes that support the pulley. The end of the rope doesn’t count.
MA
Uses grooved wheels and a rope to raise, lower or move a load, makes work seem easier.
Pulley
NA
no advantage
Three types of pulleys
- Fixed pulley
- No MA
- Movable Pulley (MA of 2)
An object with at lease one slanting side ending in a sharp edge, which cuts materials a part.
Wedge
A stiff bar that rests on a support called a fulcrum which lifts or moves loads.
Lever
Length of eArm : length of rArm=
MA
A wheel with a rod, called an axle, through its center lifts or moves a load.
Wheel & Axle
The mechanical advantage of a wheel is the ___
Ratio of the radius of the wheel divided by the radius of the axle.
A straight line from a circles center to its perimeter.
Radius
The length of a straight line passing through the center of a circle and connecting two points on the circumference.
Diameter
A slanting surface connecting a lower level to a higher level.
Inclined Plane
MA for an inclined plane is the ___
Length of the slope divided by the height. (Rise)
2 or more simple machines working together are called
Compound Machines
An inclined plane wrapped around a pole which holds things together up lifts materials.
Screw
Is a push or pull, that causes a change in the motion or shape of an object.
Force
Machine that converts energy into mechanical force or motion.
Engine
Energy cannot be created or destroyed but can be transferred
Law of conservation of energy
Anything that help do work
Machines
Force x distance
Work
A measure of how much more work must be put into a machine than you get out of the machine.
Efficiency
