Investigation: Pendulums

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Presentation transcript:

Investigation: Pendulums Data/Results: Control 1. 2. 3. 4. _____________ ____ ____ ____ ____

Investigation: Pendulums Problem: Can we change the number of pendulum cycles in 15 seconds? Variables: 1. Mass (number of washers) 2. Angle of release 3. Length of string Prediction: I think that changing the ______ will (increase/decrease) the number of cycles. This will happen because ______.

Data/Results: Conclusion: Mass Angle Of Release Length Of String ____ Control 1. 2. 3. 4. Ave. _____________ ____ ____ ____ ____ Conclusion: Changing the _____ & _____ caused (little/no) change to the number of cycles. The average stayed close to ___ cycles/15 seconds. Changing the _____ caused the number of cycles to change significantly. On a short string, the average (increased/decreased) from ___ to ___ cycles per 15 seconds. When Science works like it’s supposed to... Everything is REPEATED multiple times Your conclusion is based on your EVIDENCE

Why is it a bad idea to change 2 variables at once? Homework- Why is it a bad idea to change 2 variables at once? WHY does the pendulum eventually come to a stop?