Hypothesis: I think that the ball will drop less than the height that it was dropped from.
Method:
1) Get a (table) tennis ball and a meter ruler.
2) Hold the meter ruler from the ground up.
3) Put your hand, with the ball in it, at a certain height and drop it.
4) Measure how high it bounced back and how high you dropped it from.
5) Repeat the same steps but this time change the heights that you drop it form.
Key Variables:
Dependent Variable - The bounce back height
Independent Variable - The height it is held at the start
Controlled Variable - The type of ball you're using
Graph Results:
The higher the height we dropped it from the higher it would drop from. For the 3m we stood on a table and dropped it from there as we knew it was already 3m from the roof to the ground. At 3 meters it bounced back to 93cm on average and at 1 meter it bounced back to 41cm.
Conclusion:
In conclusion I was roughly right with my hypothesis that it would bounce back less than the dropped height.
Hi Lauren, that looks like a fun activity in Science. I like it that you used a graph to show your recordings.Good work!
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