Aim: To determine if a cyclone spins faster at the eye or if it spins faster on the outer edge.
Hypothesis: I hypothesise that the eye of the cyclone will spin faster.
Variables:
Independent - The eye of the cyclone and the outer edge.
Dependant – Is the cyclone spinning faster in the eye or the edge.
Controlled – The speed at which the mixer is spinning and the size of the ping pong ball.
.
Materials:
· 2 ping pong balls
· Mixer
· Big pot
· Water
Method:
1. Fill pot ¾ with water
2. Put one ping pong ball in the middle of the pot
3. Turn mixer on and put it in the water
4. Leave mixer on for 20 seconds
5. Count how many times it completes a revolution
6. Do steps 2-5 but with ping pong ball on the edge of the pot instead of in the middle
7. Divide the circumference of the pot by the circumference of the mixer
8. Divide the amount of revolutions that the ping pong ball did in the middle of the pot by the number calculated in step 7
Results:
Revolutions Equal Revolutions
Pot 3 3
Mixer 46 7
Discussion of results:
I had difficulty coming up with the calculations to make the revolutions equal. I also had difficulty trying to make the vortex strong. Next time I will try and come up with a better way of creating the vortex as this way wasn’t very accurate. Next time I would also test it a few more times to make sure that my results are as accurate as they can be.
Conclusion:
My hypothesis was correct because the eye of the cyclone spins much faster that the edge of the cyclone. It spins 2 1/3 faster this is because all of the water is getting sucked into the middle making it spin faster. My generalisation is that the closer you get to the eye of the cyclone the more destructive it becomes.
Hypothesis: I hypothesise that the eye of the cyclone will spin faster.
Variables:
Independent - The eye of the cyclone and the outer edge.
Dependant – Is the cyclone spinning faster in the eye or the edge.
Controlled – The speed at which the mixer is spinning and the size of the ping pong ball.
.
Materials:
· 2 ping pong balls
· Mixer
· Big pot
· Water
Method:
1. Fill pot ¾ with water
2. Put one ping pong ball in the middle of the pot
3. Turn mixer on and put it in the water
4. Leave mixer on for 20 seconds
5. Count how many times it completes a revolution
6. Do steps 2-5 but with ping pong ball on the edge of the pot instead of in the middle
7. Divide the circumference of the pot by the circumference of the mixer
8. Divide the amount of revolutions that the ping pong ball did in the middle of the pot by the number calculated in step 7
Results:
Revolutions Equal Revolutions
Pot 3 3
Mixer 46 7
Discussion of results:
I had difficulty coming up with the calculations to make the revolutions equal. I also had difficulty trying to make the vortex strong. Next time I will try and come up with a better way of creating the vortex as this way wasn’t very accurate. Next time I would also test it a few more times to make sure that my results are as accurate as they can be.
Conclusion:
My hypothesis was correct because the eye of the cyclone spins much faster that the edge of the cyclone. It spins 2 1/3 faster this is because all of the water is getting sucked into the middle making it spin faster. My generalisation is that the closer you get to the eye of the cyclone the more destructive it becomes.