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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

2105 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

1514 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

1162 views
How many homes can a 1 megawatt (MW) wind turbine power?
Emerlyes
Answered: Dec 03, 2020
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

966 views
Which requires more work?
John Smith
Answered: Dec 03, 2020
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

808 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

598 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

588 views
Is moon the source of useable energy?
Jisalman
Answered: Dec 03, 2020
The moon

1 Answer

575 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

574 views
What can you infer about fossil fuels from the name?
Jisalman
Answered: Dec 03, 2020
That they ve been buried in the earth s crust for millions of years

1 Answer

545 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

533 views
What is the correct sequence of events in cellular respiration?
Gidaswimmer
Answered: Dec 03, 2020
Glycolysis- Krebs cycle- electron transport & ATP synthase action

1 Answer

490 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? A. 57 W B. 560 W C. 240 W D. 670 WThis question...
D. gray, Builder
Answered: Apr 19, 2019
C is the answer to this question. 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...Read More

3 Answers

478 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

444 views
Can you name one alternative material for making paper?
Icapture
Answered: Dec 03, 2020
Hemp, the more humane and clean option, requires less land acreage to grow than timber, has fewer chemical byproducts, and can be recycled more frequently than tree fiber. -National Geographic,...Read More

1 Answer

422 views

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