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Forces & Motion
Vocabulary terms for Section 1: Forces & Motion
| Term | Definition |
|---|---|
| Force | Something that changes motion and/or shape of an object |
| Friction | The resistance of force/motion when one object rubs against another |
| Scientific Method | The method we use to observe and question, hypothesize, experiment, conclude, and share our exploration of the world around us. |
| Observation | The process of looking at the world around us and asking questions or wondering about why something happens. |
| Hypothesis | This is our best guess about what will happen with the questions we ask and test through experiments. |
| Theory | Explanation of why something happens, they can be improved and changed; they should be tested and agreed upon in the scientific community |
| Elastic force | When a force is placed on an object and it returns the force |
| Lubricant | A substance used to reduce friction between moving surfaces |
| Fluids | A form of matter that flows easily and is neither a solid nor a gas |
| Gravity | An invisible force that pulls objects toward each other |
| Mass | The amount of matter or substance that makes up an object |
| Galileo | Studied speed and velocity, gravity and free fall, the principle of relativity, inertia, projectile motion |
| Centripetal | A force that acts on a body moving in a circular path and is directed toward the center around which the body is moving. |
| Pressure | The amount of force exerted per area |
| Buoyancy | The ability or tendency to float in water or air or some other fluid |
| Inertia | Property of matter in which objects remain stationary or in motion unless acted upon by a force |
| Speed | The time rate at which an object is moving along a path; the distance an object moves in a certain amount of time |
| Acceleration | Rate at which velocity changes with time |
| Action/reaction | Part of Newton's third law of motion, which states that every action has an equal and opposite reaction. |
| Velocity | The speed of an object in a certain direction |
| Fluid dynamics | The branch of applied science that is concerned with the movement of liquids and gases. |
| Bernoulli's Principle | States that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy. |
| Displacement | When an object is fully submerged under water and moves its own volume |
| Slope Formula | m=(y2-y1)/(x2-x1) |
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TaylorMom
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