Memory Anchor:

• Super Challenge:

  Stretch:

  Challenge:

Key Questions:

1. What is velocity a measure of?
   • Velocity is a speed in a given direction.
2. How can the distance travelled by an object in a straight line be represented?
   • If an object moves along a straight line, the distance travelled can be represented by a distance?time graph.
3. Is velocity a vector or scalar quantity and why?
   • Velocity is a vetor quanity as it only has a magnitude (size) and a direction.
4. How can the speed of an object be calculated from a distance-time graph?
   • The speed of an object can be calculated from the gradient of its distance?time graph. The gradient of a graph is change of y divided by change in x, in this case is change in distance divided by change in time.
5. What are the vector - scalar pairs?
   • The vector - scalar pairs are displacement : distance velocity : speed
6. (HT only) If an object is accelerating, how can the speed at a time be determined from a distance-time graph?
   • (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.
7. (HT only) What is constant and what is changing during circular motion?
   • (HT only) speed is constant velocity is changing as direction is changing