Physics: Year 9 Term 2: Current & Charge 0.0 / 5 ? PhysicsEnergyElectricityGCSEAQA Created by: Charlotte HerondaleCreated on: 15-01-18 17:16 What is a diode? (1) A circuit component that lets only 1 direction of current through 1 of 12 What is an ammeter? (1) A circuit component that measures current 2 of 12 What is a fixed resistor? (1) A circuit component that limits the current 3 of 12 What is a variable resistor? (1) A circuit component that allows the current to be varied 4 of 12 What is a fuse? (1) A circuit component designed to melt and break the circuit if the current is too high 5 of 12 What is a voltmeter? (1) A circuit component that measures potential difference 6 of 12 How is the size of current measured? (1) Rate of electron flow 7 of 12 What is the unit? (1) Flow of charge per second 8 of 12 Charge is measured in what? (1) Couloumbs (C) 9 of 12 Current is measured in what? (1) Amperes/amps (A) 10 of 12 1 A/s = ? (1) 1 C/s 11 of 12 What is the equation for charge flow (Q)? (2) Q = I x t (Charge = Amps x Time) 12 of 12
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