Resistance of water through a pipe

Reason for this theme

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

First experiment

tools

apparatus The amount of water flow for 30 seconds

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

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

Second experiment 　　　　　　　　　　3000ml

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

Second experiment graph

Second experiment graph

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