level: forces
Questions and Answers List
level questions: forces
| Question | Answer |
|---|---|
| what is scalar and vector quantities | scalar on gives distance (magnitude) and vector gives both size and distance |
| is force scalar or vector | vector |
| what is difference between contact and none contact force | contact force two objects physically and none contact does not |
| difference between weight and mass | mass is the amount of matter an object has, and weight is how strong gravity pulls on an object |
| difference between scalar and vector | scalar is magnitude but no direction while vector is both |
| difference between Distance and displacement | how far an object moves without direction displacement is both |
| which are scalar and which are vector?: speed, velocity, displacement, force, weight, mass, energy , acceleration, time, distance | scalar: speed, distance, time, mass, energy vector: velocity, force, weight, acceleration |
| if an object is stationary and resultant force is equal what happens | stays stationary |
| if an object is moving and it and forces are equal? | stays at constant speed |
| what is resultant force | the overall force acting on an object |
| what is thrust | forward in air |
| what is air resistance | back in air |
| what is does weight dp | down |
| what is difference between weight and mass | mass is the amount of matter an object has (which is how heavy it is) and weight is the measure of how strong gravity pulls on the mass (in newtons) |
| what is friction | back on ground (2 objects going against each other) |