1. Write the Law of Conservation of Energy.

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Presentation transcript:

1. Write the Law of Conservation of Energy. Energy cannot be created or destroyed. It is conserved/transferred.

2. The energy transfer of a moving object can be represented by the formula: GPEi + KEi = GPEf + KEf

GPEi + KEi = GPEf + KEf KEi = GPEf 3. Rewrite the formula by eliminating the energies that are not considered for this lab. GPEi + KEi = GPEf + KEf KEi = GPEf

4. Substitute the formulas for the remaining energies. KEi = GPEf ½ m v2 = m g h

5. We will rearrange the formula to isolate velocity. This gives us: v = 2 g h

6. Rearranged for height, the formula is: h = ½ v2 g

Now, we will use this math to find the initial velocity of the “poppers”! Get into your lab groups, and complete the procedure on the next page. Complete “Questions” 1-4.