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phisyics kw
phisiycs notes
| Question | Answer |
|---|---|
| what is the streangth of gravity | 9.8m/s2 |
| what is megnatuid | a velocity that has a derction |
| what is velosity | speed in a general direction |
| what is acceleration | change in speed or direction |
| what is the equation for distanc relavit to acceleration | 1/2at^2 |
| what is a vector | an arrow drawn to scail to represent a magnetud |
| what is a resultant | the adding of two vectors |
| what isa projectile | an object in motion |
| what is trojectory | the psth s projectile takes |
| what is force | any push or pull |
| what is friction | the force of 2 obfects as they move past each other |
| whst is inertia | and objects resistanc to change in motion |
| what is newtons first law | an object at rest stays at rest unless acted on an outside force |
| what is mass | the mesure of an objects inertia |
| what is newtons second law | the net force on an object is porortional to the forces magnetude |
| what is newtons third law | every force has an equel and opessit reaction |
| what is a mechine | a divice for changing or rederecting force |
| what is a newton | the SI unit for force |
| what is a watt | the Si unit for power |
| what is freefall | motion under the influenc of gravity |