1. PHYSICS – CH 8.1 DESCRIBING MOTION PAGE 250

2. USEFUL LINKS 1.Link to Yr 10 Physics WikiLink to Yr 10 Physics Wiki 2.BBC Bitesize - Displacement, Velocity, Acceleration and ForceBBC Bitesize - Displacement, Velocity, Acceleration and Force 3.PhET – Physics SimulationsPhET – Physics Simulations 4.Sheep Reaction Time GameSheep Reaction Time Game 5.Displaying Motion Graphs Wisc-onlineDisplaying Motion Graphs Wisc-online

3. DISTANCE AND DISPLACEMENT Distancea measurement of the total path that an object travels – includes twists and turns – does not include a specified direction. Displacementa straight line measurement of the distance separating and object from where it started to where it finished – includes a specified direction. Scalar quantitya quantity such as ‘distance or time’ that has size but not a direction. Vector quantitya quantity, such as ‘displacement or velocity’ that has both size and direction.

4. Copy the diagrams then play the drag and drop

5. SPEED AND VELOCITY Speed = distance/time (scalar) s = d/t Velocity = displacement/time (vector) v = d/t Speedthe rate of change of distance (scalar) Velocitythe rate of change of displacement (vector) Reaction time the length of time it takes a driver to respond to a hazard/emergency Reaction distance the distance moved while reacting to a hazard/emergency Instantaneous speedthe speed of an object at a particular time.

6. Read the paragraph then copy the topic and the conversion diagram

12. Reaction time - sheep game

14. GRAPHING MOTION – DISTANCE/TIME GRAPHS

15. DISPLACEMENT/TIME GRAPHS

16. SPEED/TIME GRAPHS

22. REVIEW QUESTIONS Questions 1-18 pages 257-8 Full sentences and diagrams where appropriate