Circuits Answer Key
Build and test series and parallel circuits to understand how current, voltage, and resistance are related.
Prior Knowledge Questions
Q1.What is electric current?
Electric current is the flow of electric charge (electrons) through a conductor, measured in amperes (A).
Q2.What is voltage?
Voltage is the electrical potential difference that drives current through a circuit, measured in volts (V).
Q3.What is resistance?
Resistance is the opposition to the flow of electric current, measured in ohms (Ω).
Activity A – Ohm's Law
Q1.State Ohm's Law.
Ohm's Law states that V = I × R, where V is voltage, I is current, and R is resistance.
Q2.What happens to current if resistance increases (voltage stays the same)?
If resistance increases and voltage stays the same, current decreases (I = V/R).
Related Gizmos
More Physical Science gizmos coming soon.