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N1st law and motion
Newtons first law , inertia, and motion.
Question | Answer |
---|---|
Distance | How far you traveled between two objects. Always positive. It's a scalar quantity. |
Displacement | Change in position. It's the straight line distance between your starting position. It is equal to final position minus initial. It can positive or negative. It is vector quantity. |
Scalar | quantity that only requires magnitude (how big) |
Vector | quantity that requires both magnitude (how bug) directions. |
Speed | How fast something is moving. It's equal to distance divided by time. It is a scalar quantity. |
Velocity | rate at which a position changes. It is equal to displacement divided by time. It is a vector quantity. |
Newton's First Law | Aka The law of inertia. An object at rest will stay in rest. An object in motion will stay in motion with the same speed and in the same direction unless acted upon an unbalnced force |
Mass | A measure of the amount of mass an object has. Also a measure of inertia an object has. |
Inertia | the resistance an object has to change in it's motion. |
Force | Any push or pull (interaction) that can cause a change in motion. |
Net force | the combination of all forces on an object |
Balanced forces | When the net force is both horizontal and vertical direction are 0 newtons. These cause motion to stay the same. |
Unbalanced forces | When the net force is both horizontal and vertical direction are 0 newtons.That cause the motion to change. |
Gravitational force/weight (Fg) | A non-contact force between two objects that is most apparent close to a large object, such as a planet. The direction of the force is general towards the center of the other object. Eg . Towards the center of the earth. |