OUTCOME
By the end of the lesson you will recognise the direction of centripetal force and be able to apply the centripetal acceleration formula to problems
Engage
For an object to travel in circular motion a force needs to be applied. This force is always directed into the centre with a magnitude of
Fc = mv2/r
LEARNING TASKS
Explain
1. Why is the velocity of an object in motion described as tangential?.
2. What are the two Latin words that make up the word centripetal? Why is it relevant here?
3. Why does Doc Physics suggest circles are unnatural?
Explore and Elaborate
Practical Activity: Spinning bob
Evaluate and consolidate
Try Qs 20 - 28