# Deck 3 = Physics Summer Term Flashcards

Electrical current is…

-The movement or flow of charge.

What is charge shown as and measured as equations?

-(Q) measured in coulombs (C).

What is current shown as and measured in, in equation?

-(I) and measured in amps, (A).

Current in a series circuit?

-Current is equal all round circuit.

Which way do electrons flow?

-Electrons repelled by the negative terminal on the battery.

If you open switch on a series circuit what happens to the current?

-The current drops to 0.

What is conventional current?

-Conventional current is the direction from positive to negative around the circuit. Electrons actually flow the other way being, negatively charged. They repelled by the negative charge of the battery.

What is the equation for charge?

-The equation for charge is. Charge = current x time. (Q=IT)

If a current of 2 amps flows for three seconds the charge delivered 6 C…

- Q=IT
- Q=2x3
- Q=6

Current in parallel circuits?

-The current in the branches of the parallel circuits adds up to the current in the battery. (Pg 1 book 2).

Equations of charge?

-Q=IT.

What is current measured in?

-Current is measured in amps (A)

What is charging measured in?

-Charge is measured in coulombs (C)

What is Time measured in?

-Time is measured in seconds (s)

One amp is the same as…

-1 Coulomb every second.

What is voltage?

-Voltage is the energy transferred per unit charge… between two points in the circuit.

Equation for energy transfer?

-E=QV energy transferred = charge x voltage.

What is voltage Measured in?

-Voltage is measured in volts V.