Forces

1
(No Transcript)
2
Forces

• What is a Force?
• Push or Pull
• What does it do?
• Causes Motion
• How do we describe it?
• Size (magnitude)
• Direction

3
What are the 7 simple machines?

• Lever
• Inclined Plane
• Wedge
• Screw
• Wheel and Axle
• Gear
• Pulley

4
Why do we use simple machines?

• To make life easier!
• Simple Machines change forces
• change the direction
• change the size
• change both

5
How do they work?

• Conservation of Energy
• Work and Energy are related
• Scientific Definition of Work
• Work Force x Distance
• distance in direction of force

6
Lever
7
Incline Plane
8
Wedge

9
Screw

10
Wheel and Axle
11
Gears
12
Pulley

• Change Force
  Direction
• Same Force Size

13
Scavenger HuntFind the Simple Machines
14
In Your Classroom
15
(No Transcript)
16
(No Transcript)
17
(No Transcript)
18
(No Transcript)
19
(No Transcript)
20
(No Transcript)
21
(No Transcript)
22
(No Transcript)
23
(No Transcript)
24
(No Transcript)
25
(No Transcript)
26
(No Transcript)
27
(No Transcript)
28
(No Transcript)