Simple Machines

1
Simple Machines
2

• Tools that make work easier

3
lever
4

• A stiff bar that moves about a fixed point
  (fulcrum). It is a simple machine that is used
  to push, pull, or lift things.
• Examples seesaw, crowbar, shovel

5
Inclined plane
6

• A flat surface that is raised so one end is
  higher than the other. It helps move heavy
  objects up or down.
• Example ramp

7
wedge
8

• Is wide at one end and pointed at the other to
  help cut or split other objects.
• Examples knife or ax

9
Wheel and axle
10

• Consists of a rod attached to a wheel. A wheel
  and axle makes it easier to move or turn things.
• Examples bicycle wheels, roller skates, doorknob

11
Screw
12

• An inclined plane wrapped around a cylinder or
  cone. Often used to hold objects together.
• Examples jar lid, wood screw

13
Pulley
14

• A wheel that has a rope wrapped around it. Can
  be used to lift heavy objects by changing the
  direction or amount of force.
• Examples flagpole

15
Compound Machine
16

• A combination of two or more simple machines

17

• Examples of Screws

18

• Jar lids, drill bits, screw

19

• Examples of pulleys

20

• flagpole

21

• Examples of inclined plane

22

• ramp

23

• Examples of wedges

24

• Ax, knife, door-stop

25

• Examples of lever

26

• Seesaw, crowbar

27

• Examples of wheel and axles

28

• Wagon, doorknob, skateboard

29

• Examples of compound machines

30

• Scissors, bulldozer, hammer