MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
Quiz
Senior High School: 11th and 12th Grade
Physics
Energy - Energy And Efficiency
1
2
3
4
5
6
7
8
9
10
Q.1
What is the efficiency of a solar cell if 1000 J of solar energy hits the cell and 200 J are converted into electrical energy?
0%
10%
0%
20%
0%
30%
0%
40%
Q.2
What is electrical energy converted into when a drill is used?
0%
Kinetic energy
0%
Sound
0%
Heat
0%
All of the above
Q.3
An old boiler system is replaced with a solar heating system. The old boiler cost £250 per year to run. The new solar heating system costs £0 to run but cost £2,000 to install. How long will it take to start saving money?
0%
4 years
0%
6 years
0%
8 years
0%
10 years
Q.4
Electrical energy in a kettle changes to what type(s) of energy?
0%
Heat
0%
Sound
0%
Light
0%
All of the above
Q.5
Electrical energy in a TV changes to what type(s) of energy?
0%
Heat
0%
Sound
0%
Light
0%
All of the above
Q.6
An energy saving bulb replaces a 60 W lamp which cost £4.65 each year to run and 20p to buy. The new low energy bulb costs just £2 per year to run and 65p to buy. How long will it take to start saving money on the running costs due to the change?
0%
4 months
0%
5 months
0%
6 months
0%
12 months
Q.7
What would be a good idea to save energy and money?
0%
Replace old appliances with energy efficient ones
0%
Only leave appliances switched on when being used
0%
Use energy saving light bulbs
0%
All of the above
Q.8
How could you save money boiling a kettle for one cup of tea?
0%
Use only enough water to boil for one cup
0%
You cannot
0%
Fill kettle to the top
0%
Fill kettle half-way
Q.9
Which appliance uses the most energy?
0%
Energy saving light bulb
0%
Tumble dryer
0%
Solar panel
0%
TV
Q.10
A heat exchanger can be used to convert which type of wasted energy into a useful source of power?
0%
Light
0%
Sound
0%
Heat
0%
Electrical
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page