1. Pendulum Investigation

2. Lab Report Format Copy for Warm-up
Testable Question
Background Information/Research
Hypothesis
Materials
Variables and Controls
Procedure
Safety
Results
Conclusion

3. Testable Questions How is the period of a pendulum effected by length?
How is the period of a pendulum effected by mass?
How is the period of a pendulum effected by release angle?

4. Background Information
Pendulum – body mounted so it swings freely with gravity
Period – time for pendulum to complete 1 swing
Simulation

5. Materials Fishing line Rubber stoppers Protractor Stopwatch Meterstick
Balance
Tape

6. Safety
Basic laboratory safety
No specific issues

7. In lab groups… Write a detailed procedure for one testable question
Identify the variables and controls for one testable question
Create data table(s)

8. Warm-up
What factors should be considered when designing the pendulum investigation?

9. 7th period warm-up
What are the last two sections of a lab report?

10. Seventh period
Complete investigation plan up to and including procedure.
10 minutes
Work with person sitting next to you.
Check with Mr. Founds if time permits

11. After collecting data…
Create graph displaying data
Write conclusion in paragraph format. Include:
Restate testable question
Summarize procedure
Summarize data
Evaluate hypothesis
Suggest improvements
Suggest further investigations

12. Conclusion In paragraph format…
What were you testing? (testable question)
How did you complete your test? (procedure)
What were the results? (graph)
How could the investigation be improved?

13. Warm-up
Why is the pendulum lab considered a controlled scientific investigation?

14. Science Warm-up
What are some challenges that your group has faced so far with the pendulum investigation?

15. 7th period warm-up
In the investigation you designed yesterday, what was your independent variable?
For the pendulum lab, why is having ONLY ONE independent variable important?

16. Procedure Choose what to test (length, mass, or angle)
Select 3 different variables
Complete 3 trials for each variable
Keep all other factors the same
Complete table
Graph data
Write conclusion
Variable
Trial 1 (time)
Trial 2 (time)
Trial 3 (time)

17. Before you begin On a piece of scrap paper… What is your IV?
What is your DV?
Why are we doing multiple trials?
What do you do after collecting data?