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PSA Vocab
PSA Challenge Vocabulary
| Word | Definition |
|---|---|
| Force | Mass divided by velocity, a push or a pull. |
| Mass | How much matter is in something. |
| Acceleration | The change in velocity. |
| Drag | An increade of friction. |
| Speed | The rate at which an object moves. |
| Terminal Speed | The maximum speed an object reaches. |
| Terminal Velocity | The maximum velocity an object reaches. |
| Inertia | An object's tendency to resist change in motion. |
| Deceleration | The decreasing od acceleration. |
| Friction | The tendency of objects to slow down when rubbed against each other. |
| Invisible Forces | Forces you can't see. |
| Air Resistance | A tendency of air to grab things and slow them down. |
| Motion | Movement of an object from one place to another. |
| Velocity | Speed and direction. |
| Linear Motion | Movement on a line. |
| Newton's 1st Law | An object in motion stays in motion and an object at rest stays at reast until acetd upon by an outside force. |
| Newton's 2nd Law | A net force acting on an object causes the object to accelerate in the direction of the force. |
| Newton's 3rd Law | When one object exerts a force on a second object, the second one exerts a force on the first that is equil in size and opposite in direction. |
| Coasting | Moving without any force being applied at that time, but with force from a past time. |
| Speed Change | A change in speed while something is in motion. |
| Unbalanced Forces | The subtraction of forces where there is a remaining force and both forces are not cancled out. |
| Torque | A turning or twisting force. |
| ISS | The International Space Station that is being built by 21 countries. |
| Reverse Thrust | A force in the opposite direction of your first force. |
| Lever Arm | The Canadian arm on the ISS used to pick up stuff and is attached to a lever. |
| Robota | The first robot ever built. |
| Unimate | The first robot to work in industry. |
| Deep Space One | The first deep-space probe to rely on ion engines for primary propulsion. |
| ISS | The internaional space staion that is beingbulit by 21countries |
| force | mass divded by velocity, a push or a pull |
Created by:
Zac
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