SCI - ELECTRICAL CIRCUTS

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Last updated 3:14 PM on 4/21/26
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29 Terms

1
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What is a circuit?

A continuous path through which electricity (electrons) flows

2
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What are Microchips?

Control one or more operations in a circuit

3
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What does a battery do in a circuit?

Provides energy to push electrons through the circuit

4
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How is a series circuit arranged?

  • Components arranged in a single loop

  • Only one path for current

5
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How is a parallel circuit arranged?

  • Components connected side by side

  • Multiple paths for current flow

  • if one component stops working (or is removed), the current will still continue to flow

6
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Unit to measure current

Ampere (A)

7
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How do the amount of cells/battery affect the current flow?

  • More cells → More current

  • Fewer cells → Less current

8
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What tool is used to measure a current?

Ammeter

9
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What is voltage? (in a battery/cell)

Voltage = ability to drive current

10
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What is the difference between a cell and a battery?

  • A cell is a single unit that converts chemical energy into electrical energy

  • A battery consists of two or more cells connected together

11
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Unit to measure voltage?

Volts (V)

12
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What does voltage Represent in a battery?

 potential difference

13
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What is used to measure voltage?

Voltmeter

14
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What is resistance?

  • Opposes the flow of current

  • Regulates electricity flow

  • Prevents overheating

15
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Unit of resistance?

Ohm (Ω)

16
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Formula of RESISTANCE

RESISTANCE (R) = VOLTAGE (V)  / CURRENT (I)

<p><span style="background-color: transparent;"><strong>RESISTANCE (R) = VOLTAGE (V)&nbsp; / CURRENT (I)</strong></span></p>
17
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Formula of CURRENT

(I) CURRENT = (V) VOLTAGE / (R) RESISTANCE

<p><span style="background-color: transparent;"><strong>(I) CURRENT = (V) VOLTAGE / (R) RESISTANCE</strong></span></p>
18
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What is a fixed vs variable Resistor

🟤 Fixed Resistor

  • Resistance stays constant

  • Not affected by temperature

🎚 Variable Resistor

  • Resistance can be adjusted

19
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What is a buzzer?

Audio signaling device that converts electrical energy into sound

20
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What are Materials with Superconductivity (Superconductors)?

Materials with zero resistance

21
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<p><strong>What symbol is this?</strong></p>

What symbol is this?

Lamp

22
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<p><strong>What symbol is this?</strong></p>

What symbol is this?

Volmeter

23
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<p><strong>What symbol is this?</strong></p>

What symbol is this?

Ammeter

24
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<p><strong>What symbol is this?</strong></p>

What symbol is this?

Switch

25
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<p><strong>What symbol is this?</strong></p>

What symbol is this?

Fixed resistor

26
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<p><strong>What symbol is this?</strong></p>

What symbol is this?

Variable resistor

27
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<p><strong>What symbol is this?</strong></p>

What symbol is this?

Buzzer

28
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<p><strong>What symbol is this?</strong></p>

What symbol is this?

Cell

29
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<p><strong>What symbol is this?</strong></p>

What symbol is this?

Battery