Preview - Determination Of Ohm's Law Using Simulated Circuits

Varying Voltage

  1. Rebuild a simple circuit making sure to include contain a light bulb, ammeter, and a battery
  2. Once you have built the circuit, go ahead and click on the modify option in the toolbox. You will see a magnifying glass appear over the battery and you will have the ability to increase or decrease the voltage of the battery.
  3. Change the voltage to 10 and record the current in the correct place in the table provided for circuit 1.

Use the model to complete the 6 different circuits in the table below. Make sure that all components of the circuits are connected in series.

Questions

Please answer the questions below.

What is the effect on the current (I) of the circuit when the voltage (V) is doubled? Make a claim (answer) and support it with evidence (reference to specific trials) and reasoning that explain why those specific trials support the claim.

What is the effect on the current (I) of the circuit when the voltage (V) is tripled? Make a claim (answer) and support it with evidence (reference to specific trials) and reasoning that explain why those specific trials support the claim.

What is the effect on the current (I) of the circuit when the resistance (Ω) is doubled? Make a claim (answer) and support it with evidence (reference to specific trials) and reasoning that explain why those specific trials support the claim.

What is the effect on the current (I) of the circuit when the resistance (Ω) is tripled? Make a claim (answer) and support it with evidence (reference to specific trials) and reasoning that explain why those specific trials support the claim.

Use this table or the interactive table below to collect your data. If you use this sketch table, use the text button to place numbers in the empty cells provided. Be careful with the eraser, because it will clear the whole table. To increase the font size choose one of the numbers that works best. (Either 10 or 15).

Note: Draw your sketch in the sketchpad below

Fill in the table. If you are using the sketched data table instead, type the word "table" in the first cell.

Use what you have learned so far to construct an equation showing the relationship between voltage (V), current (I), and resistance (Ω).

Note: Draw your sketch in the sketchpad below

Notes

These notes will appear on every page in this lesson so feel free to put anything here you'd like to keep track of.