Pleased i need this today...... thank you | Science homework help

1. Click the voltmeter. A voltmeter measures the difference in the voltage between 2 places on a circuit. This is called the voltage drop. Place the contacts of the voltmeter on the circuit on either side of the battery.

Note: The voltmeter tells you the voltage drop between the two points in the circuit touched by the probes. Voltage works in a similar fashion to gravitational potential energy based on height. Balls will only roll down board if one end is higher than the other (so it is sloped). The ball (electron) at the higher end of the board (wire) has lots of potential energy (voltage). The ball will roll down the board (electron will move through the wire) to the lower end of the board that has less gravitational potential (less voltage). You could use a ruler to measure the height difference between the high point of the board and the low point where the ball moves to. This would be the change in height or how hard the ball dropped in height. For the electron, you would use a voltmeter to measure how much the voltage dropped from one point to another. "LOOK AT PICTURE 5 (ATTACHED)" What is the voltage drop across the battery?

- 1 V

- 3 V

- 9 V

- 12 V