
Calculation of cost of electrical energy consumption

Quiz
•
Science
•
12th Grade
•
Medium
Standards-aligned
NORFAZLIANA GHAZALI
Used 44+ times
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dean uses rice cooker which has power rating of 2.2kW twice a day. The period for each time he uses the rice cooker is 15 minutes. How much electrical energy is used in kWh?
1.10kWh
0.67kWh
0.55kWh
0.27kWh
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jefri just finished watching television with the power rating 180W. The electrical energy used by the television is 0.27kWh. How many hours did Jefri watch the television?
1 hour
1.5 hours
2 hours
3 hours
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following lamps has the highest energy efficiency?
Compact fluorescent lamp
halogen lamp
Incandescent lamp
LED lamp
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the unit for power?
Ampere
Watt
Kilowatt hour
Voltage
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 200W electric keetle is used to heat up water for 15 minutes. How much electrical energy is used?
0/03kWj
0.04kWj
0.05kWj
0.06kWj
Tags
NGSS.HS-PS3-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 2000W vacuum is used for 0.5hours. How long will it takes a 100 W immersion heater to use the same amount of electrical energy?
5 hours
10 hours
15 hours
20 hours
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the cost 1kWh of electricity is RM0.30, what is the cost of using a 1.5kW oven for 4 hours?
RM1.80
RM2.50
RM2.20
RM3.20
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