Mission EC4: Resistance, Voltage and Current

Mission EC4 focuses on the conceptual and mathematical relationship between resistance, voltage and current. The mission consists of 37 questions organized into 10 Question Groups. You must answer one question from each Question Group to complete the mission. The learning outcomes for this mission are ...
 

Learning Outcomes

• The student should be able to identify the definition of resistance, the units of resistance, and the factors effecting the amount of resistance in a circuit.
• The student should be able to predict the effect of varying voltage and resistance upon the current in a circuit and upon the brightness of a light bulb.

 

Launch Mission EC4

 

Getting Help

If you are not familiar with this topic, then you should first learn about the topic using our written Tutorial or our Video Tutorial:

The Physics Classroom, Circuits Unit, Lesson 3, Part a

The Physics Classroom, Circuits Unit, Lesson 3, Part b

The Physics Classroom, Circuits Unit, Lesson 3, Part c

• How is electrical resistance defined?
• What is the unit of electrical resistance?
• What are the variables which effect the resistance of a wire?
• How does the length of a wire effect the resistance of the wire?
• How does an alteration of the resistance of a wire effect the current in the wire?
• How does an alteration of the voltage impressed across a wire effect the current in the wire?

 

Video Tutorials:

Resistance

Current, Voltage, and Resistance

 

 

Question-Specific Help

Each Question Group has its own Help page with information specific to the question. You can access the Help page from within the mission by tapping on the Help Me! icon (textbook). For your convenience, links to those pages are provided below: