| Chichester Psalms |
| Force | ||
| Pressure | ||
| Work | ||
| Energy | ||
| Potential Energy | ||
| Kinetic Energy | ||
| Transformations and Conservation of Energy | ||
| Heat | ||
| A push or pull | |
| Force = F | |
| Exerted by contact or at a distance | |
| Units = Newtons = N | |
| Weight = force of gravity |
| For every force there is an equal but opposite reaction force. | ||
| Equal Magnitude | ||
| Opposite direction | ||
| Acts back on the “causing” object | ||
| Pressure = p | |
| Force = F | |
| Surface area = S | |
| p = F/S (N/m2) |
| Pressure = 1 x 105 N/m2 | |
| = 1 atmosphere = 1 atm | |
| = 14.7 lbs./in2 |
Relative Pressure or Gauge Pressure
| Pressure above atmospheric pressure | |
| Absolute Pressure = Gauge pressure + 1 atm | |
| Work = Force x Displacement | |
| Work = F x d = Fd | |
| Units = Nm2 = joule | |
| The ability of an object to do work as a result of its motion or relative position |
| Kinetic Energy | ||
| Energy of motion | ||
| Potential Energy | ||
| Energy of relative position | ||
| Energy can never be created or destroyed. It can only be changed from one form to another. |
| Friction - rubbing or contact | |
| Heat is a form of energy | |
| Heat removes energy from a system |