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12 Terms
Scalar
Quantities describes with magnitude (number) only
Vector
Quantities describes with magnitude (number) and a direction
Distance
It’s a scale quantity that refers to how much ground is covered during motion
Displacement
Vector quantity refers to how far the object is from its starting point
Speed
Scalar quantity refers to how fast something is moving
Velocity
Vector quantity refers to the rate at which an object changes
Instantaneous speed
It’s how fast something is going at that certain moment in time
Average speed
How fast an object goes during its whole journey
Average speed formula
Distance traveled / time of travel
Average velocity formula
Displacement/ time
Acceleration formula
Starting velocity - change in velocity / time And change in velocity /time
Acceleration
Speeding up: velocity and acceleration match
Slowing down:velocity and acceleration don’t match