Day15

1. circuits:

Set up: Professor Mason shows us a diagram of electric circuit, and let us guess with light bulb will be lighter or same?

Result: Top and Bottom: same brightness.

             Center:                do not light up.

Set up: Professor Mason shows us other diagram of electric circuit, and let us guess when the switch is closed, the light will be darker, lighter, or same?

Result: same brightness

2. series circuit : set up a series circuit, so connect two light bulb together. An ammeter is used as a wire

3. parallel circuit : set up a parallel circuit, connect each light bulb to battery. A voltmeter is used to measure the voltage for all light bulb.

4. measure the resistors :

In the this experiment, professor Mason gives each group 3 resistors with different color, and let's measure and calculate the value of resistor. Then, we also calculate the different percentage for all of them.