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PS U1
Newton's First Law Inertia
| Question | Answer |
|---|---|
| Distance | How far you have traveled between two positions. It is a Scalar quality. It is always positive |
| Displacement | change in position. It is the straight line distance between your starting position and ending position. Can be positive or negative. it is vector quality |
| Scalar | quality that only requires magnitude ( how big) |
| Vector | quality that requires both magnitude and direction |
| Speed | How fast something is moving. It is equal to distance divided by time. |
| Velocity | Rate at which position changes. it is equal to displacement divided by time |
| Newton's 1st Law | AKA law of inertia a object at rest will stay at rest and an object in motion will stay in motion with the same speed and direction. |
| Mass | a measurement of the amount of matter an object contains also the amount of inertia an object has |
| Inertia | the resistance an object has to change in its motion |
| Force | any push or pull (interaction) that can cause a change in motion. |
| Applied Force | An applied force is a force that is applied to an object by a person or another object. |
| Gravity Force | The force of gravity is the force with which the earth, moon, or other massively large object attracts another object towards itself. |
| Normal Force | The normal force is the support force exerted upon an object that is in contact with another stable object. |
| Friction Force | he friction force is the force exerted by a surface as an object moves across it or makes an effort to move across it. |
| Air Resistance | The air resistance is a special type of frictional force that acts upon objects as they travel through the air. |
| Tension Force | Force that is transmitted through a string, rope, cable or wire when it is pulled tight by forces acting from opposite ends. |
| Spring Force | Force exerted by a compressed or stretched spring upon any object that is attached to it. |