GCSE Physics test one: 11/11/16 0.0 / 5 ? PhysicsElectricityGCSEWJEC Created by: Mathilde.HickmanCreated on: 07-11-16 17:32 What are protons? positivly charged parts of atoms found in the neucleus 1 of 11 What are neutrons? neutrally charged parts of atoms found in the neucleus 2 of 11 What are electorns? negitivly charged parts of atoms found in the shells 3 of 11 number of protons= number of electrons = atomic nuber 4 of 11 number of protons + number of neutrons = mass number 5 of 11 What are the three rules of seriese circuits? 1) the voltage is divided into the amount of units in the circuit 2) the voltage adds up 3)current has the same value at all points in the circuit 6 of 11 What is resistance measured in? Ohms 7 of 11 What happens inside a resistor? electorns collide with ions which slows down the flow 8 of 11 What does resistance depend on? the size and material of a resistor 9 of 11 How do you add resistors in a seriese circuit? Rt = R1+R2 10 of 11 How do you calculate resistance in a paralell circuit? Rt = R1xR2/R1+R2 11 of 11
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