Which of the following may not be a source of thermal energy?a)Micro-ovenb)Sunc)Moond)HeaterCorrect answer is option 'C'. Can you explain this answer?

EduRev

All Courses

Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity

Open App

ACT Exam > ACT Questions > Which of the following may not be a source of...

Which of the following may not be a source of thermal energy?

a)
Micro-oven
b)
Sun
c)
Moon
d)
Heater

Correct answer is option 'C'. Can you explain this answer?

Join for Free

Join for Free

Verified Answer

Which of the following may not be a source of thermal energy?a)Micro-o...

Thermal energy is also known as heat energy, it’s source s are the same as heat energy. As we know that micro-oven produces heat waves to raise food’s temperature and bake them, sun for solar energy and heater produces heat. Moon doesn’t.

View all questions of this test

View all answers Start learning for free

Explore Courses for ACT exam

Similar ACT Doubts

Directions: Read the passages and choose the best answer to each question.PassageSOCIAL SCIENCE: This passage discusses some social and economic issues regarding liquid natural gas as an energysource.Although oil and gasoline remain importantenergy sources, it is natural gas that currently suppliesaround 25 percent of America’s energy needs. A recentstudy shows that natural gas use was roughly 22 trillion(5) cubic feet (TCF) annually. Natural gas demand isincreasing at phenomenal rates because of its abilityto create cleaner fuel for electrical power. Experts pre-dict that annual demand is likely to increase to almost32 TCF in less than a decade. At a consumption rate(10) of 32 TCF per year, the United States would only haveabout a five-year supply of natural gas. Known naturalgas reserves in North America are quickly becomingexhausted. In fact, in the past thirty years, known sup-plies have dwindled from almost 300 TCF to around(15) 150 TCF.It is no wonder that natural gas has become a con-troversial and critical topic of discussion among politi-cians, business leaders,and consumers. It is apparentthat the United States will need to drastically increase(20) imports of natural gas to relieve shortages. One waythat economists believe this can be done is by importingliquid natural gas. Experts predict that liquid naturalgas imports will increase by almost 500 percent in a fewshort years. Currently, the country imports very little(25)liquid natural gas. The process of transporting liquidnatural gas is complicated and expensive. This is themost obvious reason why America has been reluctantto choose liquid natural gas over other energy sources.Converting natural gas into liquid natural gas involves(30) cooling natural gas as it is collected to −260F. Thistransforms the gas into a liquid, which is then injectedinto a specially designed vessel for transport. Whenthe liquid natural gas reaches its destination, the liquidis reheated into its original gaseous state and allowed(35) to flow into a pipeline. Even though new technologyhas considerably decreased transportation costs for liq-uid natural gas, it is still often uneconomical. This isespecially true for nations with other energy sources.One of the largest misconceptions about liquid(40) natural gas is that it is an abundant source of naturalgas. While liquid natural gas imports continue toincrease, the public demand for natural gas increasesat an even higher rate. Even though the United Stateshas several facilities that can process liquid natural gas,(45) these facilities are consistently unable to obtain enoughliquid natural gas to operate at their fullest capacity.Even when liquid natural gas is obtainable, there is afear that low natural gas prices in the United States willmake liquid natural gas uneconomical. Most business(50) leaders and politicians are reluctant to create new facili-ties to process liquid natural gas because these facilitiesare expensive and risky. This limits the capacity to pro-cess liquid natural gas even if it becomes more readilyavailable.(55) The United States also faces competition fromAsia in securing liquid natural gas. Competition forliquid natural gas will most likely become even moreferocious as other populous countries like Japan andChina become more desperate for fuel sources. Some(60) of the more daring politicians and business leadersbelieve that building new liquid natural gas facilitieswill help companies and consumers take advantage offuture increased liquid natural gas imports. Currently,Canada is the largest liquid natural gas supplier for(65) the United States. However, liquid natural gas importsfrom Canada will decrease considerably in the nextdecade as Canadian consumption increases and sup-plies of natural gas dwindle. Therefore, consumers andbusiness leaders should not rely on liquid natural gas(70) to solve America’s energy needs and consumers shouldcontinue to expect high prices as demand grows andsupplies decline.Q.The author of the passage would most likely agree with which of the following statements?

View answer

The photoelectric effect is a phenomenon that has led to many important scientific discoveries. Light of a particular wavelength is shined onto a piece of metal, showering the metal with photons. Wavelength is inversely related to a photons energy. That is, with a smaller wavelength, the photon has greater energy. The wavelength of the light is decreased until a detector next to the metal senses that electrons are being ejected from the metal. This sensor also tells us how many electrons are ejected per second, which we call electrical current. At this point, any additional decrease in wavelength does not affect the number of electrons ejected. This point is called the metals work function. However, if we then begin to increase the intensity of the light being shone (meaning the amount of light as opposed to the lights wavelength), the number of electrons picked up by the sensor increases.Q. Light intensity can best be described as which of the following?

View answer

Sleep plays a vital role in defining the daily activities of virtually all animals. During periods of sleep, the parasympathetic nervous system becomes active and induces a relaxed state in response to increased levels of the hormone melatonin. Yet, despite its ubiquity in the animal kingdom, the purpose of sleep and its role in our daily lives has been disputed by scientists. Two scientists discuss their theories about the purpose of sleep.Scientist 1During periods of sleep, animals are able to conserve energy that they would otherwise be spending on unnecessary activity. If an animal’s primary food source is most abundant during daylight, it is a waste of precious energy to be moving about at night. For example, many herbivores, such as squirrels, are diurnal (sleep during the night) because their food source is available during the day, while many insectivores, such as bats, are nocturnal (sleep during the day) because their food source is available during the night. Food sources, as an animal’s most valuable resource, dictate their sleep cycles. Many animal traits observable today evolved as a result of the supply and demand of food in their natural habitat.Scientist 2During waking hours, it is true that the body utilizes large amounts of energy. However, the role of sleep is to restore biological products that were utilized during periods of wakefulness, rather than simply avoid utilizing energy in the first place. Many types of biological molecules, such as hormones, are released throughout the body while an animal is active. Sleep serves as a period of inactivity during which the body can manufacture and store a supply of these molecules for future use during the next period of activity. Furthermore, sleep allows the body to repair cellular damages that has accumulated during waking hours. Experimental evidence shows that when animals are deprived of sleep, their immune system quickly weakens and death rates increase. Sleep is necessary for animals to prevent accumulation of damage and to regenerate crucial biomolecules for daily life.Q.Which of the following, if true, would most support Scientist 1?

View answer

Sleep plays a vital role in defining the daily activities of virtually all animals. During periods of sleep, the parasympathetic nervous system becomes active and induces a relaxed state in response to increased levels of the hormone melatonin. Yet, despite its ubiquity in the animal kingdom, the purpose of sleep and its role in our daily lives has been disputed by scientists. Two scientists discuss their theories about the purpose of sleep.Scientist 1During periods of sleep, animals are able to conserve energy that they would otherwise be spending on unnecessary activity. If an animal’s primary food source is most abundant during daylight, it is a waste of precious energy to be moving about at night. For example, many herbivores, such as squirrels, are diurnal (sleep during the night) because their food source is available during the day, while many insectivores, such as bats, are nocturnal (sleep during the day) because their food source is available during the night. Food sources, as an animal’s most valuable resource, dictate their sleep cycles. Many animal traits observable today evolved as a result of the supply and demand of food in their natural habitat.Scientist 2During waking hours, it is true that the body utilizes large amounts of energy. However, the role of sleep is to restore biological products that were utilized during periods of wakefulness, rather than simply avoid utilizing energy in the first place. Many types of biological molecules, such as hormones, are released throughout the body while an animal is active. Sleep serves as a period of inactivity during which the body can manufacture and store a supply of these molecules for future use during the next period of activity. Furthermore, sleep allows the body to repair cellular damages that has accumulated during waking hours. Experimental evidence shows that when animals are deprived of sleep, their immune system quickly weakens and death rates increase. Sleep is necessary for animals to prevent accumulation of damage and to regenerate crucial biomolecules for daily life.Q.Which of the following, if true, would most support Scientist 2?

View answer

There are two types of forces that occur with all substances on Earth. Intramolecular forces occur between atoms in a molecule, while intermolecular forces occur between neighboring molecules. Intermolecular forces can be dipole-dipole forces, hydrogen bonding, or London dispersion forces.Professor 1:Water molecules represent an example of hydrogen bonding due to the attraction between the hydrogen atoms and the oxygen atoms in the molecule. This strong dipole-dipole occurs due to lone pairs present on such atoms as Fluorine, Nitrogen, and Oxygen, which are able to pair more closely to the hydrogen atom in another nearby molecule. Water can be present in a solid, liquid, or gaseous state on Earth depending on the competition between the strength of intermolecular bonds and the thermal energy of the system. In 1873, a Dutch scientist, Van der Waals derived an equation that included both the force of attraction between the particles of a gas and the volume of the particles at high pressures. This equation led to a better fit for experimental data than the Ideal Gas Law.Professor 2:Water is the only substance on Earth that we routinely encounter as a solid, liquid, and gas. At low temperatures, the water molecules lock into a rigid structure, but as the temperature increases, the average kinetic energy of the water molecules increases and the molecules are able to move more creating its other natural states of matter. The higher the temperature, the more likely water is to be a gas. Water is proof of the kinetic theory, which assumes that there is no force of attraction between the particles of the gas state. The best fit for experimental data involving water in a gaseous form is found by using the Ideal Gas Law, since there is no interaction between the gaseous molecules. This law accounts for all of the forces that occur with gases on Earth.Q. Which of the following statements would professor 2 agree with?

View answer

Top Courses for ACTView all

ACT Mock Test Series 2025

Biology for ACT

How to Prepare for ACT

Mathematics for ACT

Chemistry for ACT