1. “Swingers”
What is a pendulum?

4. Investigating Swingers
Q: How many times do you think your swinger will swing in 15 seconds?
P: Write your prediction. Don’t forget to include “because”.

5. Data Table?

6. What variable can we now change in your swinger that might change the number of swings in 15 seconds?

7. Release Position
120 45

8. Mass T1 T2 T3
Average
2 pennies 12
3 pennies
4 pennies

9. Length of String T1 T2 T3 Average 13 cm 21 19 20 17cm 19.5 20 cm 1715
33 cm 12 14
13.33
45 cm
11.5
11.83
55 cm
10.5 10
10.33
70 cm 9
90 cm
120 cm 7
170 cm 6
5.5
5.83
200 cm 5
5.33

10. What have we learned from Swingers?

11. Variable
Anything that you can change in an experiment that might affect the outcome.

12. Pendulum
A mass hanging from a fixed point that is free to swing to and fro.

13. Constant
Everything that remains the same in the experiment.

14. Control
The normal used to compare to the variable.

15. System
A set of objects that are working together.