Capacitors, Efficiency and Alternate Energy Sources
Quiz
•
Science
•
9th - 12th Grade
•
Hard
Adam Guidry
Used 5+ times
FREE Resource
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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a dielectric material?
A material that does not conduct electricity
A material that allows electricity to flow quickly
A material that stores electrons
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a capacitor?
an electrical component that draws energy from a battery and stores the energy
an electrical component that produces energy from a chemical reaction
an electrical component that can be used to slowly power a phone.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What the five main alternate energy sources
Wind, Fire, Ice, Earth, Water
Wind, Solar, Biomass, Hydro, Nuclear
Volcanoes, Lightning, Earthquakes, Floods, Tornadoes
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a machines wastes 50% of its energy, then what is its efficiency?
40%
150%
75%
50%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a light bulb uses 500J of energy to light up and the total energy input was 750J. What is the energy wasted?
1250J
250J
500J
750J
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a machine is 40% efficient than how much waste does it have?
140%
60%
20%
30%
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Input 1250J Output 800J
What is the efficiency?
46%
64%
36%
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a good use for a capacitor?
A camera Flash
Charging a battery
Powering a refrigerator
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A capacitor releases its stored energy very slowly.
True
False
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