1. Learning Objective: To be able to calculate the Time Period and Frequency of a pendulum. Also, to be able to explain what effect the Mass and Length of the pendulum has on its Time Period or Frequency. I can describe where pendulums are used in the everyday world. (Grade C) I can calculate the Time Period and Frequency of a pendulum. (Grade B) I can explain what effect the mass and length of pendulum has on the Time Period for a Pendulum (Grade A)

2. Big Question In Europe early scientists and doctors would use pendulums to locate infections and weak areas of the body – can this really work?

3. Key words Pendulums Time Period Frequency Mass Big Question: In Europe early scientists and doctors would use pendulums to locate infections and weak areas of the body – can this really work?

4. Key words What is Frequency?: Frequency is how many cycles per second Measured in Hertz (Hz) What is Time Period?: Time Period is how many cycles there are in one second. Measured in Seconds (s) How are these two things linked? Big Question: In Europe early scientists and doctors would use pendulums to locate infections and weak areas of the body – can this really work?

5. Where: f = Frequency T = Time Period Pendulums Practise Questions: 1.A pendulum has a frequency of 0.2Hz. What is its time period? 2.A pendulum has a time period of 0.4s. What is its frequency? 3.A pendulum swings 5 times in 1 second. What is its frequency? 4.A pendulum has a frequency of 0.6Hz. What is its time period? 5.A pendulum swings 8 times in 10 seconds. What is its frequency?

6. Learning Objective: To be able to calculate the Time Period and Frequency of a pendulum. Also, to be able to explain what effect the Mass and Length of the pendulum has on its Time Period or Frequency. I can describe where pendulums are used in the everyday world. (Grade C) I can calculate the Time Period and Frequency of a pendulum. (Grade B) I can explain what effect the mass and length of pendulum has on the Time Period for a Pendulum (Grade A)

7. Pendulums - Practical Big Question: In Europe early scientists and doctors would use pendulums to locate infections and weak areas of the body – can this really work? Length of Pendulum /m Time for 10 swings /seconds Time for 1 swing /seconds Frequency /Hertz 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

8. Pendulums - Practical Big Question: In Europe early scientists and doctors would use pendulums to locate infections and weak areas of the body – can this really work? Task 1: Draw a graph of your results. Plotting Length of Pendulum (x-axis) against frequency (y-axis). Task 2: Write a conclusion about your results.

9. Learning Objective: To be able to calculate the Time Period and Frequency of a pendulum. Also, to be able to explain what effect the Mass and Length of the pendulum has on its Time Period or Frequency. I can describe where pendulums are used in the everyday world. (Grade C) I can calculate the Time Period and Frequency of a pendulum. (Grade B) I can explain what effect the mass and length of pendulum has on the Time Period for a Pendulum (Grade A)

10. Big Question In Europe early scientists and doctors would use pendulums to locate infections and weak areas of the body – can this really work?

11. Learning Objective: To be able to calculate the Time Period and Frequency of a pendulum. Also, to be able to explain what effect the Mass and Length of the pendulum has on its Time Period or Frequency. I can describe where pendulums are used in the everyday world. (Grade C) I can calculate the Time Period and Frequency of a pendulum. (Grade B) I can explain what effect the mass and length of pendulum has on the Time Period for a Pendulum (Grade A)