Force & Motion Overview

8/8/2019 Force & Motion Overview

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An Overview



A large part of physics is force. Forces are

found everywhere.

Sometimes the force is big, like the sun’s gravita-

tional pull on the planets.

Other times the force

is small, like pushing

a shopping cart

through the store.





First Law:

An object at rest tends to stay at rest, and an ob-

ject in motion tends to stay in motion, with the

same direction and speed until a force acts upon

This ball will stay at rest un-til a force makes it move.

This ball wouldhave continued if it

was for the man or

net stopping it.



Second Law:

Acceleration (the rate the object changes its ve-

locity) happens when a force is applied to mass(all objects have mass). The greater the mass

an object has the more force needed to make it

accelerate (move). The less mass an object has

the less force needed to make it

move (accelerate).

Third Law:

For every action (or force) there is an equal and

opposite reaction (or force).

A tennis ball has less mass than a bowling bowl, therefore it

takes less force to accelerate the tennis ball and more force to

accelerate the bowling ball.

When a cannon is fired the ballshoots out and one direction, but

the cannon itself is pushed back

in the opposite direction.



There is friction between the tires of a car

and the road. If the road is wet there is less

friction making harder for the car to stop.

Friction is a force that holds back or slows down the move-

ment of an object.

There is friction between the golf ball and the

grass. This is what caused a golf ball to stop roll-

ing after it has been hit with the club.

If a force is applied to an object it may change its energy.

That energy must be used to do work, or accelerate, an ob-

ject. There are many types of energy. Kinetic and Potential

energy are found in all things.

Potential Energy

is stored energy – that is it has the

potential

(possibility) to use

its energy to move

(or accelerate)

Kinetic Energy is

energy in motion – that is the energy

that was stored is

now being used to

move (or accelerate)

the object.





Information compiled and organized by

Angelic Boyers

LME 537

ReferencesExamining Gravity and it’s pull. (2005). Laws of motion. Retrieved January 12, 2011, from http://player.discoveryeducation.com/index.cfm?guidAssetId=CDA9C235-0EC4-4CA5-A713-B920EBD189D2&blnFromSearch=1&productcode=US Friction on the ground and in the air. (2005). Laws of motion. Retrieved January 12, 2011, from http://

player.discoveryeducation.com/index.cfm?guidAssetId=CDA9C235-0EC4-4CA5-A713-

B920EBD189D2&blnFromSearch=1&productcode=US

Let's move it: Newton's laws of motion. (2007). Discovery education. Retrieved January 10, 2011, from http://

player.discoveryeducation.com/index.cfm?guidAssetId=CD57F186-3466-48A8-892F-

E4CA072F48F7&blnFromSearch=1&productcode=US

Motion basics. (1997-2010). Physics4kids. Retrieved January 9, 2011, from http://www.physics4kids.com/files/

motion_intro.html

Picture of Sir Isaac Newton. (2009). Climate progress. Retrieved January 9, 2011, from http://

climateprogress.org/2008/05/30/krauthammers-strange-denier-talk-points-part-1-newtons-laws-were-overthrown/

http://player.discoveryeducation.com/index.cfm?guidAssetId=CDA9C235-0EC4-4CA5-A713-B920EBD189D2&blnFromSearch=1&productcode=US








http://player.discoveryeducation.com/index.cfm?guidAssetId=CD57F186-3466-48A8-892F-E4CA072F48F7&blnFromSearch=1&productcode=US




http://www.physics4kids.com/files/motion_intro.html


http://climateprogress.org/2008/05/30/krauthammers-strange-denier-talk-points-part-1-newtons-laws-were-overthrown/
















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Force & Motion Overview