What are Forces and Friction?

Question

What are the different types of forces and friction? ANd what exactly are each of them?

Just wondering...helping brother on homework..yeap =]

Answer 1

Friction is a type of force.
There are 2 types of Friction.
Static Friction and Kinetic Friction


Static Friction:
Think about when a book is on a broken table, the surface of the table is on a slight angle, yet the book remains stationary.

Kinetic Friction:
Think about pushing a table across the floor. The reason why you can't push it with one finger is because of this force.

The relation between these 2 frictional forces, is when an object is JUST about to move.

For example:
A box on the floor requires 100 N to move it.
If you push with 99 N, the box will not move due to Static Friction pushing back at you with an equal 99 N force.
But if you push the box with 101 N force, you overcome Static Friction because Static Friction was only able to exert 100 N.
Once the box starts moving, Static Friction becomes Kinetic Friction. Kinetic Friction is always LESS than Static Friction.

Ever notice why it's hard to get a stationary object to move, but once it's moving already, it's ez to keep it moving?
That's the difference between Static and Kinetic Friction.


Force = Mass x Acceleration
Different types of Forces are:
Gravity, Normal, Applied, Friction, Elastic, Tension, etc.

Gravity is the Earth pulling u down.

Normal is the reaction force for any present action force.
Ex: why don't we just fall through the floor when gravity acts upon us? because the floor itself exerts a Normal force to keep us from falling to the center of the earth.

Applied is just a general term for dealing with free body diagrams. Applied forces refers to any force not mentioned, that is acting upon ur object.
Ex: you pushing the box.

Already talked about friction. friction inclues air resistance

Elastic is the force created when an object is deformed.

Tension. When ever u have a string/rope u have tension.

Answer 2

There are 2 Types of Friction:
1) Static Friction ("resting")
2) Kinetic Friction ("moving")

There are 4 Fundamental Forces:
1)gravitational
2)strong nuclear
3) weak nuclear
4) electromagnetic

Answer 3

There are four basic types of forces. (1) Nuclear strong force (2) Nuclear weak force (3) electrostatic force - like charges repel, unlike charges attract (4) gravity. Most situations deal with electrostatic or gravitational forces. Forces cause an object to accelerate. That is, to change its speed or direction or both. Friction is a force that always opposes the motion of an object. If a box is sliding on the ground, friction opposes the sliding and makes the box stop.

Answer 4

interior the vector equation, F = ma, (F and a are vectors) F is the internet tension, the sum of all forces performing on the physique (utilized tension, gravity, friction, etc.) The frictional tension would be in a course opposing the action.

Answer 5

friction is the moving of 2 things together and forces are types of friction

Answer 6

Wikipedia. Dictionary. Do some work aside from typing.

Answer 7

forces are something that acts to do something. like the force of gravity
friction is the loss of momentum due to the energy being converted. most often in the form of heat

Answer 8

Nice sister....Ah this might help...

http://www.regentsprep.org/Regents/physics/phys01/friction/default.htm