Upcoming SlideShare
×

# Force.Ppt

20,135

Published on

13 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
• very nice and easy to understand

Are you sure you want to  Yes  No
• thank you very much for this nice presentation

Are you sure you want to  Yes  No
• so comprehensive

Are you sure you want to  Yes  No
• it is an very nice presentation...

Are you sure you want to  Yes  No
Views
Total Views
20,135
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
899
4
Likes
13
Embeds 0
No embeds

No notes for slide

### Force.Ppt

1. 1. FORCE
2. 2. What is Force? <ul><li>A push or pull </li></ul><ul><li>Force has a size & direction </li></ul><ul><li>All motion is created by a force </li></ul><ul><li>All forces are exerted by one object on another </li></ul><ul><li>**Motion does not have to occur </li></ul>
3. 3. How is Force Measured? <ul><li>Measured in Newtons (N) </li></ul><ul><li>The more Newtons, the greater </li></ul><ul><li>the force </li></ul><ul><li>One tool to measure the force of </li></ul><ul><li>gravity is the spring scale </li></ul>
4. 4. Examples of Force <ul><li>Fingers open a book </li></ul><ul><li>Push buttons on a keyboard </li></ul><ul><li>Gravity holds up a chair </li></ul><ul><li>2 magnets coming together </li></ul><ul><li>The force that results from combining forces </li></ul>Visible Forces Invisible Forces
5. 5. How to Measure Net Force SAME DIRECTION = ADD TOGETHER 20N + 25N = 45N UNBALANCED FORCE because it produces MOTION This is the NET FORCE Person # 1 Pushing with 20N Force Person # 2 Pushing with 25N Force
6. 6. How to Measure Net Force OPPOSITE DIRECTIONS = SUBTRACT 25N - 10N = 15N UNBALANCED FORCE because it produces MOTION This is the NET FORCE Team # 1 Pulling with 25N Force Team # 2 Pulling with 10N Force
7. 7. How to Measure Net Force OPPOSITE DIRECTIONS = SUBTRACT 37N - 37N = 0N BALANCED FORCE because there is NO MOTION This is the NET FORCE Wrestler # 1 Pushing with 37N Force Wrestler # 2 Pushing with 37N Force
1. #### A particular slide catching your eye?

Clipping is a handy way to collect important slides you want to go back to later.