| A | B |
|---|
| Power | is the rate at which work is done or the measure of how much work is done in a certain time period |
| Force | is a push or pull on an object |
| Work | force applied times the distance and object (vehicle) moves. |
| Energy | is the capacity or ability to do work. |
| What are the 3 types of energy sources | Limited sources, Unlimited sources, Renewable sources |
| Limited energy sources | are sources that have a fixed supply such as oil, coal, and natural gas |
| Unlimited energy sources | have more than we can ever use such as wind, gravitational, solar and geothermal |
| Renewable energy sources | come from plants and animals and can be readily replaced or renewed as they are used |
| What are the six categories of energy | mechanical energy, heat energy, electrical energy, chemical energy, nuclear energy, light or radient energy |
| Mechanical energy | is the energy of moving objects |
| Heat energy | is produced by the movement of molecules |
| Electrical energy | is the energy of the movement of electrons |
| Chemical energy | is produced when the chemical structure of a substance changes |
| Nuclear energy | is the energy of the nuclear reaction of atoms |
| Light or radiant energy | comes from the sun, fire and even light bulbs |
| What are the two forms of energy? | Kinetic energy and Potential energy |
| Kinetic energy | is energy that comes from an objects movement |
| Potential energy | is stored energy or energy at rest. |
| Drag | the force on a vehicle created by friction |
| Gravity | the force applied to a vehicle that pulls it towards the center of the earth. |
| Lift | is an upward force used to overcome gravity |
| Thrust | the push or pull on a vehicle suppled by the vehicle's engine |
| Buoyancy | an object placed in water is pushed upward by a force equal to the weight of the water displaced by the object |
| Friction | the resistance met by an object when moving over or turning against another object |
| Bernoulli's Principle | states that as the speed of fluid increases, its pressure decreases |
| Newtons 1st law of motion | An object in motion will remain in motion, and on object at rest will remain at rest unless acted upon by an outside force |
| Newtions 2nd law of motion | The force applied to an object equals its mass times its acceleration |
| Newtons 3rd law of motion | For every action there is and equal and opposite reaction. |
| Combustion engines produce these three types of motions | reciprocating, rotary, linear |
