3.1 Electrical Appliances Flashcards
1
Q
Name 4 types of common electrical appliances and what type of energy they produce
A
- lamps, to produce light
- electric mixers, to produce kinetic energy
- speakers, to produce sound energy
- TVs, to produce light and sound energy
2
Q
What useful energy transfer takes place in a drill?
A
Electrical energy to kinetic energy
3
Q
How do many electrical appliances transfer energy?
A
By heating
4
Q
Name an electrical appliance where energy transfer by heating is useful?
A
A kettle
5
Q
How should electrical appliances be designed?
A
To waste as little energy as possible
6
Q
Which electrical appliance usefully transfers electrical energy into light energy and sound energy?
A
TV or computer
7
Q
What is an electrical appliance?
A
A machine that transfers electrical energy into our desires type of energy at the flick of a switch
