Ohm's Law
Flashcard
•
Science
•
6th - 8th Grade
•
Hard
Barbara White
FREE Resource
Student preview
10 questions
Show all answers
1.
FLASHCARD QUESTION
Front
Voltage Noun
[vohl-tij]
Back
Voltage
The potential difference in charge between two points in an electrical field, representing the push or pressure behind current flow.
Example: This diagram uses a water analogy to show voltage as the 'pressure' or potential energy caused by the height of the water in the pipe.
2.
FLASHCARD QUESTION
Front
Current Noun
[kur-uhnt]
Back
Current
The rate at which electric charge flows past a point in a circuit, measured in units called Amperes (Amps).
Example: This diagram shows a simple circuit where an electric battery causes charged particles to flow through a conductor, lighting up a bulb, illustrating electric current.
3.
FLASHCARD QUESTION
Front
Resistance Noun
[ri-zis-tuhns]
Back
Resistance
A measure of the opposition to the flow of electric current within an electrical circuit, measured in units called Ohms.
Example: This diagram shows a simple circuit where a battery (V) pushes current (I) through a light bulb, which provides resistance (R) to the flow.
4.
FLASHCARD QUESTION
Front
Ohm's Law Noun
[ohmz law]
Back
Ohm's Law
A fundamental law stating that current is directly proportional to voltage and inversely proportional to resistance in a circuit.
Example: This diagram, the Ohm's Law triangle, is a tool to remember the formula. Cover the value you want to find (V, I, or R) to see the equation to solve for it.
5.
FLASHCARD QUESTION
Front
Potential Difference Noun
[puh-ten-shuhl dif-er-uhns]
Back
Potential Difference
The work needed per unit of charge to move a test charge between two points; another term for voltage.
Example: A 12-volt battery creates a potential difference, pushing negative charges through a wire to power a headlight, demonstrating voltage in a simple circuit.
6.
FLASHCARD QUESTION
Front
Circuit Noun
[sur-kit]
Back
Circuit
A complete and closed path around which an electrical current can flow, typically including a power source and components.
Example: This image shows that without a circuit, electrons in a conductor move randomly. When connected to a voltage source, they form a circuit and flow together.
7.
FLASHCARD QUESTION
Front
Resistor Noun
[ri-zis-ter]
Back
Resistor
An electrical component specifically designed to introduce a precise amount of electrical resistance into a circuit.
Example: This image shows a resistor in two ways: as a zigzag symbol in a schematic diagram and as a physical component in a real circuit.
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