Controlling and using electric current Flashcards
1
Q
What is voltage?
A
The potential difference
2
Q
What is resistance?
A
anything in circuit that slows the flow down
3
Q
Fill in the gap:
Potential difference is the ________ transferred per unit charge passed
A
- Energy
4
Q
What is LDR short for?
A
Light dependent resistor
5
Q
Fill in the gap:
- In _____ light, the resistance falls
2. In darkness, the resistance is _________
A
- Bright
2. Highest
6
Q
What happens to resistors when an electric current passes through them
A
They get hot
7
Q
What is electrical power?
A
The rate at which an appliance transfers energy
