1 1 Force and Pressure. 2 What are Forces? A push or pull.
-
Upload
jesus-clayton -
Category
Documents
-
view
224 -
download
2
Transcript of 1 1 Force and Pressure. 2 What are Forces? A push or pull.
![Page 1: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/1.jpg)
1 1
Force and Pressure
![Page 2: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/2.jpg)
2
What are Forces?
A push or pull
![Page 3: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/3.jpg)
3
Examples of Forces
Squeezing Stretching Twisting Folding
![Page 4: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/4.jpg)
4
Object’s shape changes Object’s size changes Stationary object moves
Effects of Forces
![Page 5: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/5.jpg)
5
Moving object stops Moving object speeds up or slows down Direction of an object’s motion changes
Effects of Forces
![Page 6: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/6.jpg)
6
Weighing scale
![Page 7: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/7.jpg)
7
Tsunami
![Page 8: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/8.jpg)
8
Weight lifting
![Page 9: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/9.jpg)
9
Ultimate frisbee
![Page 10: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/10.jpg)
10
Naruto vs Sasuke
![Page 11: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/11.jpg)
11
Measuring Forces
S.I unit of force is newton (N) Spring balance used to
measure the amount of force applied
![Page 12: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/12.jpg)
12
Types of Spring Balance
Extension spring balance Spring stretches when a pulling force acts
on it Greater force, greater extension Spring attached to a pointer which indicates
the amount of force exerted on the spring
![Page 13: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/13.jpg)
13
Types of Spring Balance
Compression spring balance Spring compressed when a pushing force
acts on it Greater force, greater compression Spring attached to a pointer which
indicates the amount of force exerted on the spring
![Page 14: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/14.jpg)
14
Forces Around Us
Gravity Friction Magnetism
![Page 15: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/15.jpg)
15
Gravity
Gravity is the force that attracts objects to the Earth
Mass is a measure of the amount of matter in a body
Weight is a measure of the gravitational force exerted on the object
![Page 16: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/16.jpg)
16
Friction
Frictional force acts when one materials rubs against another
Friction is useful in walking and when applying brakes to stop a car
Constant friction leads to wear and tear Friction produces heat
![Page 17: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/17.jpg)
17
Magnetism
Magnetism is the force exerted by a magnet on magnetic materials such as iron and steel
Every magnet has a North pole and a South pole
Like poles repel Unlike poles attract
![Page 18: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/18.jpg)
18
What is Pressure?
Amount of force
acting on a unit area A sharp object pierces
a surface more easily than a blunt object
![Page 19: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/19.jpg)
19
Calculating Pressure
Pressure = ForceArea
![Page 20: 1 1 Force and Pressure. 2 What are Forces? A push or pull.](https://reader038.fdocuments.us/reader038/viewer/2022102716/5514130c550346ec488b518e/html5/thumbnails/20.jpg)
20
Applications of Pressure in Everyday Life
Bulldozer Can openers Knife Plane Suction cups