Physical Science Unit 4 Review

Flashcard
•
Science
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the current in a series circuit?
Back
The current is the same throughout the circuit.
2.
FLASHCARD QUESTION
Front
What happens to current if voltage stays the same and resistance increases?
Back
The current will decrease.
3.
FLASHCARD QUESTION
Front
What is the formula to calculate voltage?
Back
Voltage (V) = Current (I) × Resistance (R).
4.
FLASHCARD QUESTION
Front
What voltage is needed to produce 2 Amps of current through a 10Ω resistor?
Back
20V.
5.
FLASHCARD QUESTION
Front
How do you calculate current in a circuit with a 1.5V battery and two 5Ω resistors?
Back
Current (I) = Voltage (V) / Total Resistance (R). Total Resistance = 5Ω + 5Ω = 10Ω, so I = 1.5V / 10Ω = 0.15 amps.
6.
FLASHCARD QUESTION
Front
What is static electricity?
Back
The accumulation of excess electric charge on an object.
7.
FLASHCARD QUESTION
Front
What is resistance in an electrical circuit?
Back
Resistance is a measure of the opposition to the flow of electric current, measured in Ohms (Ω).
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