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Test: Charge flow in circuits - Year 7 MCQ


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10 Questions MCQ Test - Test: Charge flow in circuits

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Test: Charge flow in circuits - Question 1

In order to measure the current flowing through a bulb in a circuit, the ammeter is connected in:

Detailed Solution for Test: Charge flow in circuits - Question 1
It measures the amount of electricity flowing through the circuit or component and therefore needs to be in the circuit rather than being in parallel with it
Test: Charge flow in circuits - Question 2

Which of the following does a light bulb do?

Detailed Solution for Test: Charge flow in circuits - Question 2
Thomas Edison invented a light bulb that stayed alight. All the previous efforts had only stayed alight for a short while before the filament melted, breaking the circuit
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Test: Charge flow in circuits - Question 3

Which component of an electrical circuit controls the flow of current?

Detailed Solution for Test: Charge flow in circuits - Question 3

A switch opens or closes the circuit, controlling whether current can flow through the circuit or not.

Test: Charge flow in circuits - Question 4

What does the symbol of a battery in a circuit diagram typically look like?

Detailed Solution for Test: Charge flow in circuits - Question 4

The longer line represents the positive terminal, and the shorter line represents the negative terminal of the battery.

Test: Charge flow in circuits - Question 5

Which component of a circuit is used to oppose the flow of electrons?

Detailed Solution for Test: Charge flow in circuits - Question 5

Resistors are components that introduce resistance to the flow of current in a circuit, measured in ohms (Ω).

Test: Charge flow in circuits - Question 6

In which direction does conventional current flow in a circuit?

Detailed Solution for Test: Charge flow in circuits - Question 6

Conventional current is considered to flow from the positive terminal of the battery or power source to the negative terminal.

Test: Charge flow in circuits - Question 7

Which type of circuit contains a single power source connected in a closed loop?

Detailed Solution for Test: Charge flow in circuits - Question 7

A simple circuit consists of a single power source connected to components like lamps and switches in a closed loop.

Test: Charge flow in circuits - Question 8

What is the purpose of a capacitor in an electrical circuit?

Detailed Solution for Test: Charge flow in circuits - Question 8

Capacitors are components used to store electrical charge temporarily in a circuit.

Test: Charge flow in circuits - Question 9
In order to measure the voltage across a bulb in a circuit, the voltmeter is connected in:
Detailed Solution for Test: Charge flow in circuits - Question 9
The clue is in the wording - you measure voltage across a component
Test: Charge flow in circuits - Question 10

Which of the following materials typically exhibits the highest electrical conductivity?

Detailed Solution for Test: Charge flow in circuits - Question 10

Copper is a highly conductive material commonly used in electrical wiring due to its excellent conductivity.

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