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Propeller set 2
| Question | Answer |
|---|---|
| Action | Force exerted by the first force onto the second object |
| Reaction | Equal and opposite force exerted by the second to the first object |
| Normal | The force that comes from the surface in which the object is located |
| Friction | The force that opposes motion |
| Contact force | Force that acts between 2 objects that directly touch |
| Gravity | The force I attraction between to objects |
| Net force | The overall force on an object |
| Non contact force | Force that acts between 2 objects that do not directly touch |
| What is a kinetic energy | An energy associated with an object in motion |
| What is potential energy | Thw energy stored in an object |
| What ate the three types of potential energy | Elastic Gravitational Chemical |
| What's an independent variable | Variable that is changed |
| Whats the dependent variable | Varia or who's value changes when the independent variable is changed |
| What is the controlled variable | Variable that is kept the same |
| What are some components of a well designed expierment | Specific procedure Specific measurements Multiple trials |
| Acceleration | A change in speed or direction |
| Weight vs Mass | Mass= amount Matter in an object Weight= amount of attraction between the object and earth |
| Work | When a force is exerted on an object causing the object to move in the same direction as the force |
| Trend | General direction in which something tends to change |
| Energy | Capacity to move something from a rest positron |
| Propulsion force | A push or pull that causes an object to move |
| Newtons first law | Stay at rest Stay in motion. Unless acted upon by an outside force |
| Newtons 2nd law | More mass and greater net force = greater acceleration |
| Newtons 3rd law | For every action there is an equal and opposite reaction |