Science Forces

In science a force is defined as…

There are two major types of forces,

Contact and Non-Contact

Friction

C)

The force exerted by a surface on an object as the object moves or tries to move across it.

Buoyancy

C)

The upward force exerted on an object that is placed in a fluid (liquid, gas) opposes the object’s weight.

Magnetic

N)

The force exerted between magnetic poles that either attracts them to each other or repels them from each other.

Gravity

N)

The force which the earth, moon, or other massively large object attracts another object towards the center of itself.

Spring

C)

The force exerted by a compressed or stretched spring on any object that is attached to it.

Normal

C)

The upward force exerted on an object that is in physical contact with another stable object, such as a table or a chair.

The strength of a force is measured using a device called a ______ which is also called a ______.

Spring scale, force meter

The SI unit used to measure the strength of a force is called the ____

The overall force on an object after all the forces are added togther is called the ___

When two forces act in the same die reaction, they ___ eachother

Add

When two forces act in opposite directions, they ____ each-other

Subtract

When you add equal forces, that are exerted in opposite directions, the net force is ____

Equal and opposite forces abating on one object are called ____ forces

Balanced

When one force is larger than another force, the forces are called _____ forces

Unbalanced

Unbalanced forces cause an object to do one of the three things,

Start moving, stop moving, change direction