Instantaneous Velocity and Speed (Grade 10 NSC Matric Physical Sciences): Flashcards

How fast & in which direction at a specific instant

How fast an object moves (magnitude only, no direction)

Vector (has magnitude and direction)

Scalar (magnitude only, no direction)

Metre per second ($m \cdot s^{-1}$)

Very small, approaching zero ($\Delta t \to 0$)

Speed is the magnitude of velocity

$t$

$\Delta t$

Instantaneous: one moment; Average: over time period