1. Resistance of water through a pipe

2. Reason for this theme

3. The way of the experiment
1 How much water flows through pipe
per 30 seconds?
2 How long time do water
flow per 5000ml?

4. First experiment

5. tools

6. apparatus
The amount of water flow for 30 seconds

7. First experiment’s result
“Speed　[cm/s]” 1 2 3 4
Average
Straight pipe
30.24
32.81
30.96
33.03
31.76
Curved pipe(3cm)
31.90
30.37
30.67
30.08
30.76
Curved pipe(5cm)
30.23
29.78
29.78　　　
　　30.04

8. First experiment’s result
“Amount of water[ml]” 1 2 3 4
Average
Straight
Pipe
1025.8
1112.5
1050
1120
1077.1
Curved pipe(3cm)
1082
1030
1040
1020
1043
Curved pipe(5cm)
1025
1010
1018.8

9. Second experiment
　　　　　　　　　　3000ml

10. apparatus
The time each 500ml of water took to flow until the total of 3000ml of water

11. Second experiment graph

12. Second experiment graph

13. Result
・ water flows faster through straight pipes than through curved ones.
・The more pipe is curved,
the　slower water flows.