Electricity | Baamboozle - Baamboozle | The Most Fun Classroom Games!

What instruments would you use to measure the resistance in a circuit?

A voltmeter and an ammeter.

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What does potential difference (p.d.) mean?

Potential difference (p.d.) is the work done by a unit charge passing through a component.

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what is the unit for resistance?

Ohm (Ω)

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If resistance increases while voltage stays the same, what happens to current?

The current decreases.

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What is the equation used to calculate electromotive force (e.m.f.)?

The equation for e.m.f. is E= Q / W , where E is the e.m.f., W is the work done, and Q is the charge.

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Give 10 points!

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Lose 25 points!

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What calculations are needed to find the resistance?

Measure the voltage (V) across the component and the current (I) through it, then use the equation R= I / V .

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If the voltage is 12V and the current is 3A, what is the resistance?

4Ω

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What is mean by electromotive force (e.m.f.)?

Electromotive force (e.m.f.) is the electrical work done by a source in moving a unit charge around a complete circuit.

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What is the equation to calculate potential difference (p.d.)?

the equation for potential difference (p.d.) is V= E/Q , where V the potential difference, E is the energy transferred , and Q is the charge.

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If the current is 3A, the voltage is 4V, and the time is 2 hours, what is the electrical energy used?

Convert time to seconds: 2 hours = 7200 seconds 2hours=7200seconds 𝐸 = 3 × 4 × 7200 = 86400J

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What is the equation for resistance?

R = V / I

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What is the actual direction of electron flow in a circuit?

From negative to positive.

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If the work done is 20 Joules and the charge is 5 Coulombs, what is the e.m.f.?

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Lose 5 points!

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Double points!

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Other team loses 20 points!

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Lose 25 points!

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