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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

4 Answers

2019 views
What device converts chemical energy to mechanical energy?
D. gray, Builder
Answered: Apr 19, 2019
The answer to this is D. 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...Read More

2 Answers

1454 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

1062 views
How many homes can a 1 megawatt (MW) wind turbine power?
Emerlyes
Answered: Oct 24, 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

943 views
Which requires more work?
John Smith
Answered: Oct 24, 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

747 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

558 views
Is moon the source of useable energy?
Jisalman
Answered: Oct 24, 2020
The moon

1 Answer

553 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

548 views
What can you infer about fossil fuels from the name?
Jisalman
Answered: Oct 24, 2020
That they ve been buried in the earth s crust for millions of years

1 Answer

532 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

522 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

503 views
What is the correct sequence of events in cellular respiration?
Gidaswimmer
Answered: Oct 24, 2020
Glycolysis- Krebs cycle- electron transport & ATP synthase action

1 Answer

485 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

433 views
Which graph correctly shows the effect of heat energy on the motion of molecules of matter?
Matz Lewis Clark, College student
Answered: Feb 26, 2019
The correct answer to this question is C. The rate of motion of the molecules depends on the kinetic energy of the particles; therefore kinetic energy is directly proportionate to the...Read More

2 Answers

433 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

403 views

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