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Copy of Science Friction

A simple presentation to aid a hands on class exploring forces.

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PRESENTATION OUTLINE

1.

Science Friction

2.

Today we will observe and measure how the movement of objects is changed by applying forces.
We will look at balanced forces, friction and Newton's laws of motion.

3.

What makes things move?

4.

Push

Photo by Clover_1
5.

Pull

Photo by Aris.Sanchez
6.

How do we measure forces?

Photo by Leo Reynolds
7.

What slows or stops motion?

Photo by Loopdeeloop
8.

Balance Forces

Photo by joshwept
9.

Gravity

Photo by rottnapples
10.

Feather and Hammer

http://www.youtube.com/watch?v=5C5_dOEyAfk&feature=player_embedded
11.

Newtons 3 Laws of motion

  • If an object is not being pushed or pulled it will either stay still or move in a straight line for ever
  • When a force acts on an object it will cause it to accelerate. The bigger its mass the bigger the force required to make it accelerate.
  • Action and reaction are equal and opposite.

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