### Description

**Background Information:**

- Ohm's law and resistance (6 min):Ohm's Law (Links to an external site.)
- Adding resistors in series and parallel (6 min):Series vs Parallel Circuits (Links to an external site.)
- Series and parallel circuits calculations: https://learn.sparkfun.com/tutorials/series-and-parallel-circuits

Also worksheet do!

## Explanation & Answer

Here you go! I have attached the answer in a word document for you. Feel free to ask for any clarification or edits.

Last Name 1

Name

Instructor's name

Course

Date

Gizmo Warm-up

1. A. How does changing the battery’s voltage affect the current?

Answer: Increasing the battery’s voltage, increases the flow of electrons which result

to increase in the current and vice-versa.

1. B. How does changing the battery’s voltage affect the brightness of the light?

Answer: Increasing the battery’s voltage, increases the brightness of the bulb while

decreasing the battery’s voltage makes it dim.

2. Remove the wire. What happens?

Answer: The bulb goes off (no longer gives light).

3. What is the measured current (include units!)?

Answer: 0.67 Amperes

4. Move the ammeter to the other side of the bulb. Does the bulb “use up” current? (Y/N)

Answer: N

5. What is this voltage (include units!) ?

Answer: 10 Volts

Activity A: Ohm’s law

1. Form hypothesis: How do you think increasing the resistance in a series circuit changes

the

current in the wire (increases/decreases/unchanged)?

Answer: increasing the resistance in a series circuit decreases the current in the wire

2. Observed

3. Collected data:

Voltage V

10 volt

20 volt

30 ...