Electric Bills Science

Quiz
•
Science
•
9th - 10th Grade
•
Hard
Standards-aligned
Charles Martinez
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The kilowatt-hour is the unit of
electrical charge
electrical energy
electrical power
voltage
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. What is the formula to calculate electrical power?
potential difference / current
potential difference / resistance
potential difference x current
potential difference x resistance
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An electric heater takes 4A of current from a 250V supply when operating normally.
How long would it take the heater to convert 400 000 J of electrical energy?
40 s
400 s
1000 s
1600 s
Tags
NGSS.HS-PS3-1
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
It costs $0.30 for 1 kWh of electrical energy.
How much will it cost to run a 60 W lamp for 10 hours?
$0.05
$0.18
$3.00
$18.00
Tags
NGSS.HS-PS3-1
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An electric heater is rated 230V, 10A. Which fuse is most suitable for the electric heater?
10A
15A
30A
13A
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A microwave oven rated 1.2kW, 240V is connected to a 240V electricity supply. Calculate the current that flows through the oven.
5A
0.05A
200A
0.2A
Tags
NGSS.HS-PS2-4
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An electric rice cooker rated 800W, 230V is switched on for 30 minutes. How much electrical energy is used?
400kWh
3.48kWh
0.4kWh
104kWh
Tags
NGSS.HS-PS3-1
8.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An electric rice cooker rated 800W, 230V is switched on for 30 minutes. Calculate the cost of energy that is used by the rice cooker if the cost per kWh is 30sen.
RM12
RM0.12
RM1.20
RM120
Tags
NGSS.HS-PS3-1
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