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Energy Questions and Answers (Q&A)

Which energy transformation occurs in a toaster?
Mike John, Content Explorer
Answered: Jul 08, 2019
The correct answer to this question is C, Electric to thermal. Electric toasters are used in many homes to make toast, waffles, and frozen pastries. A toaster transfers electric energy taken from...Read More

3 Answers

2171 views
What device converts chemical energy to mechanical energy?
D. gray, Builder
Answered: Apr 19, 2019
All of the given examples can be converted from chemical energy to mechanical energy. Human beings usually need sugar and other types of food in order to become energized. Once they become...Read More

2 Answers

1575 views
Why is the reaction H2 + Cl2 → 2HCl exothermic?
T. Moore, Writer
Answered: Mar 07, 2019
In exothermic reactions, more energy is involved when bonds are formed in the products than used to break the bonds reactant. If the total energy required to break bonds in the reactants is...Read More

2 Answers

1273 views
How many homes can a 1 megawatt (MW) wind turbine power?
Emerlyes
Answered: Jan 17, 2021
225-300

An average U.S. household uses about 10,655 kilowatt-hours (kWh) of electricity each year. One megawatt of wind energy can generate from 2.4 to more than 3 million kWh annually....Read More

1 Answer

988 views
Which requires more work?
John Smith
Answered: Jan 17, 2021
Both require the same amount of work-work involves a force acting upon an object to cause a displacement. the amount of work done is found by multiplying fdcos(theta). the equation can be used for...Read More

2 Answers

884 views
What is the probable density of the granitic bedrock?
W. Kaye, Ex-Marine
Answered: Mar 27, 2019
B is the answer to this question. The answer is based on the shown diagram. There are some people who may get confused with what a bedrock actually is. This is the type of solid rock that is...Read More

2 Answers

693 views
What will be the speed of the mass after sliding 4.0 m along the plane?
W. Pratt, Marketing Analyst
Answered: Apr 10, 2019
The correct answer to this question is 3/5 m/s.This question is one which would be used in physics and relates to kinetic energy. Mass has an affect on accelaration, which affects speed...Read More

2 Answers

635 views
Which of the following is the least amount of energy?
Robert Hazlewood, Senior Executive
Answered: May 30, 2019
There are a lot of people who feel that their lack of energy is the reason why they are unable to do the tasks that they have to do. The various units that are used to describe energy will also...Read More

2 Answers

620 views
Is moon the source of useable energy?
Jisalman
Answered: Jan 17, 2021
The moon

1 Answer

597 views
What has happened to the light passing through the water to cause the given-below difference?
M. Krasinski, Content Writer
Answered: Feb 11, 2019
Reflection is a part of science which can best be described as waves in which they have changed directions. The most common place to find this reflection is in mirrors or in a lake. In light,...Read More

2 Answers

576 views
What is the average power supplied by a 60.0 kg person running up a flight of stairs a vertical distance of 4.0 m in 4.2 s?
D. gray, Builder
Answered: Apr 19, 2019
There are always some different types of power and energy that are being produced by people depending on the movement that they do. Take note that there are various factors that can also affect...Read More

3 Answers

559 views
What can you infer about fossil fuels from the name?
Jisalman
Answered: Jan 17, 2021
That they ve been buried in the earth s crust for millions of years

1 Answer

557 views
What is the correct sequence of events in cellular respiration?
Gidaswimmer
Answered: Jan 17, 2021
Glycolysis- Krebs cycle- electron transport & ATP synthase action

1 Answer

497 views
How much kinetic energy does the ball gain from the player?
R. Jones, Student
Answered: May 17, 2019
The correct answer to this question is A, 0.5J. Kinetic energy is the energy of a body or object that it holds due to motion. This energy is used in physics and is gained during acceleration. The...Read More

2 Answers

465 views
Where does the energy go?
Malcolm Carneal, Digital Nomad
Answered: Aug 25, 2020
It is true that energy will always be there. There are times when kinetic will turn into potential energy but it would just need another item that can turn it into kinetic energy. The given...Read More

3 Answers

449 views

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