P2 Physics - static energy, current and voltage Flashcards Preview

Science B2 C2 P2 > P2 Physics - static energy, current and voltage > Flashcards

Flashcards in P2 Physics - static energy, current and voltage Deck (9)
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1

what happens when a substance loses electrons?

it becomes positively charged

2

what happens when a substance gains electrons?

it becomes negatively charged

3

if the charges of a substance are the same what happens

they repel

4

if the charges of a substance are opposite what happens

they attract

5

when can a current flow?

when an electric charge flows through a resistor

6

what is current measured in?

amps

7

what is current measured with?

an ammeter

8

what is voltage measured in

volts

9

what is is voltage measured with?

voltmeter