Physics 8th Grade Min. Test
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Created by:
rachelpowers22 on May 13, 2012
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24 terms
Terms | Definitions |
|---|---|
 Formula for Speed | S=distance/time |
| Formula for Acceleration | A=vf-vi/t |
| Formula for Force | F=mass X acceleration |
| Formula for Work | W=force X distance |
| Formula for Power | P=work/time |
| Formula for Pressure | P=force/area |
| Formula for Potential Energy | PE=mass X gravity X hight |
| Formula for Kinetic Energy | KE=1/2 X mass X velocity² |
| Unit for Speed | m/s |
| Unit for Acceleration | m/s² |
| Unit for Force | Newtons |
| Unit for Work | Joules |
| Unit for Power | Watts |
| Unit for Pressure | Pascal |
| Unit for Potential and Kinetic Energy | Joules |
| What is a Newton broken down? | kg X m/s² |
| What is a Joule broken down? | Nm |
| What is a Watt broken down? | Nms |
| What is a Pascal broken down? | Nm² |
| Newton's First Law | An object at rest stays at rest unless acted upon by an unbalanced force. An object in constant motion with stay with the same velocity unless acted upon by an unbalanced force. |
| Newton's Second Law | Force is dependent on mass and acceleration |
| Newton's Third Law | For every action of force there is an equal and opposite reaction of force. |
| 6 contact forces | frictional, tention, normal, air resistance, applied and spring |
| 3 forces at a distance | Gravitational, electrical and magnetic |
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