Have an account?
Skip to Content
Build your own quiz
Suggestions for you
7 questions
Show Answers
See Preview
- 1. Multiple Choice
Check the correct formulas below!
t = E x P
t = E/P
E = P x t
P = E/t
P = E x t
- 2. Multiple Choice
the unit of electrical energy is
second (s)
Watt (W)
Joule (J)
- 3. Multiple Choice
the unit of electrical power is
second (s)
Watt (W)
Joule (J)
- 4. Multiple Choice
the unit of time is
second (s)
Watt (W)
Joule (J)
- 5. Multiple Choice
A 240 Watt(W) of blender is used for 2 minutes (120 seconds) . How much electrical energy is used ?
2 J
480 J
28,800 J
- 6. Multiple Choice
An electrical iron has used 45000 J of energy for 15 seconds. How much electrical energy does the electrical iron have?
3000 W
675,000 W
30000 W
6750 W
- 7. Multiple Choice
How much time does a person use 15000 J of energy in a 750 W hairdryer?
100 s
200 s
300 s
400 s
- Answer choicesTagsAnswer choicesTags