Simple machines Flashcards
What is Force?
A push or a pull, changes the way an object moves.
When you move an object you use_____ to do ______?
Force to do work
Friction?
Force caused by two objects moving together.
What is a simple machine? What does it do?
Simple machines have few moving parts or no parts and help make work easier.
What is gravity?
A force that pulls objects to center of earth.
What is a lever?
A simple machine made of a board to move objects.
What is a fulcrum?
The point at which a lever is held up.
What is an inclined machine?
Simple machine with a flat surface where it is higher at one end.
What is a wedge?
A simple machine designed to push objects apart.
What is a screw?
A simple machine used to hold objects together.
Wheel and axle?
Simple machine made of a rod attached to center of a wheel.special kind of lever. The axle moves when you put force.
Gears?
Wheels with jagged edges like teeth that help the wheels turn each other.
Compound machine?
Two or more simple machines put together.
Examples of simple machines
Pulley on window, seesaw, car, bike, screw, wedge- knife, door stop, watch, clock,
