test 1 review

Question 1

what are the differences between scalars and vectors?

Answer 1

scalars have only magnitude (mass, temp, etc.)

vectors have both magnitude and direction (velocity, force, etc.)

scalars are simple numbers, while vectors include both size and direction.

Question 2

what is the difference between displacement and distance?

Answer 2

Displacement: The straight-line change in position, with both magnitude and direction, based on the start and end points.

Distance: The total path length traveled, always positive, without considering direction.

Question 3

what is the difference between speed and velocity?

Answer 3

Speed is a scalar quantity that measures how fast an object moves, considering only distance traveled per unit of time without direction.

Velocity is a vector quantity that measures the rate of change of displacement, considering both speed and direction, and can be positive, negative, or zero.

Question 4

what is the difference between instantaneous and constant velocity?

Answer 4

Instantaneous Velocity is the speed and direction of an object at a specific moment in time.

Constant Velocity means the object moves at the same speed and in the same direction without changing.