FORCE

What is force ???

Definition Force

Force is a push or pull that cause objects to changing position.Formula :

F = m.aF = Forcem= Massa= Acceleration

Types of Force

Consciously or not we often do activities that require force.

But the kind of force is not just that we spend.

Thefollowingare the types of force:

The power generated by human muscle. This style is often done when we're lifting weights or gymnastics at

school. If we often do exercise then your muscle will grow big and strong.

1. Force Muscle

The power generated by rubber or springs are stretched.

For example when you play darts, rubber able to push arrows flew fast and far.

2. Spring Force

3. Friction Force

If two objects, each experienced friction, then between the two will emerge friction. Friction can be beneficial and detrimental. When we walk on a dry road, between the shoe and road friction will arise. Friction helps us to be able to walk. Imagine if the roads slippery, the friction will be small and we will find it hard to walk.

4. Magnetic force

Forces pulling needles, nails, or other metal objects that are nearby. The magnet has two poles ie north and south poles. There are diverse forms of shaped magnetic needle, there is a form of letter "U", a cylindrical, circular and there is a rod-shaped.

Look at pictures of the following forms of magnets!

5. Elektrical force

The force on the ruler that was rubbed with dryhair so that it can attract small pleces of paper.

6. The force of gravity

The force of gravity pulling things on the earth’s surface so object allways fall down.Different when in space the astronauts do not feel the force of gravity, consequently they will hover when in outer space.

Resultan Force

Two or more force acting on an object in a line of work can be replaced with a substitute force (R).

Resutan line force of work. The formula :

....321 FFFR

Resultant force is a not line of work. the formula:

22

21 FFR

Thanks you