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A push or pull

spring scale

a tool used to measure force or weight


is force and motion, work only gets done when a force is used to move an object


anything that makes work easier

inclined plane

a slanted surface which is sometimes called a ramp


simple machine that is two inclined planes joined together to form a sharp edge


a simple machine, a bar resting on a point


a simple machine, a winding inclined plane

wheel and axle

A simple machine that is a wheel that turns on a rod(axle)


a simple machine that is a wheel with a rope moving around it

fixed pulley

is a pulley that stays in place as the load moves

movable pulley

is a pulley that moves with the load


the turning point of the lever


the object being lifted or moved by a simple machine(what you need to lift)


a force caused when one object rubs against another

name the six types of simple machines and their uses

inclined plane, lever, wedge, screw, pulley, & wheel and axle

How is friction helpful?

It can prevent slipping on a smooth surface, used to brake(stop), a bike, and can be used to start a fire.

How is friction problematic?

Too much friction makes heavy objects hard to move. Friction can cause things to wear away. For example, the soles of your shoes can wear away if you run/walk alot.

What two things do you need to do work?

force and motion

parts of a lever

load, lever, force, fulcrum

Why would someone go up a curved path rather than a straight steep path?

It would take more effort and energy to go up a steep path than to walk side to side on a curved path.

Why are things with large handles easier to use?

They are easier to hold.

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