Lesson Plan: P2.2.02

Hamble Lesson Observation Plan
Learning About
What is the difference between velocity and speed?
Keywords:
  • Distance (1)
  • Direction (1)
  • Magnitude (1)
  • Velocity (1)
Memory Anchor:
Method Precise Learning Objective Linked Question / Activity
(Designed for maximum working out)
Stepping Stones Pitstop Check
(Thinking Map)
The velocity of an object is its speed in a given direction. What is velocity a measure of?

If an object moves along a straight line, the distance travelled can be represented by a distance?time graph. How can the distance travelled by an object in a straight line be represented?

Velocity is a vector quantity. Is velocity a vector or scalar quantity and why?

The speed of an object can be calculated from the gradient of its distance?time graph. How can the speed of an object be calculated from a distance-time graph?

Students should be able to explain the vector?scalar distinction as it applies to displacement, distance, velocity and speed. What are the vector - scalar pairs?

(HT only) If an object is accelerating, its speed at any particular time can be determined by drawing a tangent and measuring the gradient of the distance?time graph at that time. (HT only) If an object is accelerating, how can the speed at a time be determined from a distance-time graph?

Demo: Use data logger and air track to investigate acceleration

HT only) Students should be able to explain qualitatively, with examples, that motion in a circle involves constant speed but changing velocity. (HT only) What is constant and what is changing during circular motion?

Links To the Big Ideas
ForcesParticlesEnergyCells