Monday 29 October 2012

Force

We can see objects moving or changing shapes every day. Dancing, running, walking even through we talking is involved force!

 

At the end of this topic, we will learn
  • What force is
  • The effect of force
  • What friction is
  • The effects of friction
  • Ways to reduce and increase friction
  • The advantages and disadvantages of friction
  • How far an object moves on different surfaces  



 What Is Force ?

All actions involve pushed and pulls. Pushes and pulls are forces. A push is an action of moving an object away. A pull is an action of bringing an object towards us or in the direction we are moving.

The boy slide down because there is a force pulling him


  
This man needs to pull the fishing rod to gt the fish out of the water





Forces cannot be seen but we can feel their effects. For example, we cannot seen wind but we can feel it blowing on our face. We can see the effects of the wind blowing on trees too.