9-2: What are simple machines?

Lesson Objectives What is a simple machine? You will learn : What is a simple machine? List or draw some examples of simple machines.

Lever

Inclined Planes An inclined plane is a flat surface that is higher on one end Inclined planes make the work of moving things easier A sloping surface, such as a ramp. An inclined plane can be used to alter the effort and distance involved in doing work, such as lifting loads. The trade-off is that an object must be moved a longer distance than if it was lifted straight up, but less force is needed. You can use this machine to move an object to a lower or higher place.  Inclined planes make the work of moving things easier.  You would need less energy and force to move objects with an inclined plane. 

Open your science book Write the date…. Read the vocab..

On your science book and By yourself .. Draw a model or drawing that shows examples of simple machines

Time of watching video

Things that give off heat Each group A B C D E

Finally please ! What about your understanding?

Distance learning Visit your acadox account, to visit the following websites: https://www.youtube.com/watch?v=83QGgBXUWBY https://www.google.com.sa/search?biw=1438&bih=675&q=work+definition+ppt&oq=define+work+pp&gs_l=serp.1.0.0i22i30l2.4237.6033.0.7330.3.3.0.0.0.0.309.815.2-2j1.3.0....0...1c.1.64.serp..0.3.812.GtpMGjZu7cA