Grade: High School - 4

PI.8.4
Describe the slope of the graphical representation of current vs. voltage or voltage vs. current in terms of the resistance of the device.

I Can Statements Academic Vocabulary
I can quantitatively describe the slope of the graph of current vs. voltage in terms of the resistance of the device.

I can quantitatively describe the slope of the graph of voltage vs. current in terms of the resistance of the device.

Slope
Current
Voltage
Resistance

Cross Cutting Concepts
Scale, Proportion, and Quantity
*Algebraic thinking is used to examine scientific data and predict the effect of a change in one variable on another (e.g., linear growth vs. exponential growth).

Systems and System Models
*Models (e.g., physical, mathematical, computer models) can be used to simulate systems and interactions - including energy, matter, and information flows - within and between systems at different scales.

Structure and Function
*The functions and properties of natural and designed objects and systems can be inferred from their overall structure, the way their components are shaped and used, and the molecular substructures of its various materials.
Science and Engineering Process Standards
SEPS 4: Analyzing and Interpreting Data
Looking Back Looking Ahead
Develop graphical and mathematical representations that describe the relationship between the amount of current passing through an ohmic device and the amount of voltage (i.e. EMF) applied across the device according to Ohm’s Law and apply those representations to qualitatively and quantitatively describe how changing the current affects the voltage and vice versa. (PI.8.3) Qualitatively and quantitatively describe how changing the voltage or resistance of a simple series (i.e. loop) circuit affects the voltage, current, and power measurements of individual resistive devices and for the entire circuit. (PI.8.5)

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