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. 38 cm pendulum T1 T2 T3
Ave
38 cm 12

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

7. Release Position T1 T2 T3
Average 45 12
120

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

9. Length of String T1 T2 T3 Ave 13 cm 21 17cm 20 20 cm 18 19 25 cm 1614
45 cm 12
55 cm 11 10
10.33
70 cm 9
90 cm
9.33
120 cm 7
7.5
7.75
170 cm 6
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.