Physics Unit 2 Kinematics Test Flashcards
Scalar
A quantity fully described by magnitude (e.g. distance, speed)
Vector
A quantity fully describes by both direction and magnitude (e.g. displacement, velocity, acceleration)
Distance vs. Displacement
Distance: a scalar quantity referring to how much ground an object has covered during its motion
Displacement: a. vector quantity referring to how far an object is from its place of origin; the object’s change in position
If someone walks a meter north, south, east, and west, their distance is…
4m
If someone walks a meter north, south, east, and west, their displacement is…
0m
Speed vs. Velocity
Speed: a scalar quantity referring to the rate at which an object moves
Velocity: a vector quantity referring to both the rate at which an object moves and the direction it moves in