Water Stream from Shower

VIDEO: 

This is a short video of the experiment conducted with the shower tap. 

This is the experimental setup for the shower tap. The scale is placed behind the tap and the stream of water is aline to the middle line of the scale. 

Water voltage test:

Materials: water from shower, voltmeter, crocodile clips, copper sticks, a beaker

Variables: 

Dependent: Voltage of the water

Constant: Distance sticks are placed away from each other, same amount of water used, same type of beaker used, same type of cooper sticks used, same type of voltmeter used

Experiment procedure: 

1. Pour 500ml of water from the shower tap into a beaker
2. Connect the voltmeter and the two cooper sticks with the crocodile clips

3. Place the two cooper sticks into the beaker of water

4. Ensure that the sticks are placed at equal distance away from each other

5. Note the voltage of the water from the voltmeter

6. Repeat the experiment two more times

7. Tabulate the results for easy reference

Results:

Shower
Voltage of water
1st attempt	2nd attempt	3rd attempt	average
0.4V	0.55V	0.6V	0.52V

Materials: Water faucet, balloon, balloon pump, protractor, ruler, camera, scale, metronome 

Hypothesis: There should be no 'bend' seen in the stream of water due to the water's voltage.  

Variables:

Dependent: Degree of ‘bend’ of the water

Independent: Distance between the stream of water and the balloon

Constant: Size of the stream of water, size of the balloon, amount of static electricity produced, material of the balloon, amount of air pumped into the balloon, speed of metronome, number of times balloon is rubbed against hair

Experiment procedure:

1. Make a scale and place it behind the water faucet (Ensure that the stream of water is flowing straight along the line drawn on the scale)
2. Place a small distance scale on top of the tap, to roughly estimate the distance

3. Use the balloon pump to pump up the balloon (about 10 pumps)

4. Rub the balloon against your hair (about 50 times)

5. Use a metronome to ensure constant speed (150 BPM) 

6. On the water faucet

7. Place the balloon near the faucet (about 1cm)

8. Take a video of the process
9. Repeat the experiment again for about 2 times 

10. Use the online protractor tool to measure the degree of the 'bend' 

11. Tabulate the results

Results:

Shower
Degree of ‘bend’ of the stream of water
1st attempt	2nd attempt	3rd attempt	average
nil	nil	nil	nil

Conclusion: There is no bend seen in the stream of water when the charged balloon is placed near the stream of water.