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Energy

The Energy category covers the description, definition, and use of all types of energy. Questions of a general nature can be put in the general Energy category. Other sub-categories exist for Fossil fuels, Nuclear energy, and renewables such as Wind, Solar, Hydro, Tidal, and Wave power.

24,905 Questions

Is blowing wind potential energy or kinetic energy?

Blowing wind is considered kinetic energy. It is the energy possessed by a moving object or particle. In the case of wind, it is the energy associated with the movement of air molecules.

A blank is a measure of energy in food?

The calorie (usually expressed in kilocalories)

Which type of energy transformation is involved in a match being struck and lit?

The energy transformation involved in striking and lighting a match is primarily chemical to thermal energy. When the match is struck, friction creates heat, causing the chemicals in the match head to react and produce a flame, which is a release of thermal energy.

When is chemical energy used?

Chemical energy is used in living organisms during processes such as metabolism, respiration, and digestion. It is also harnessed in non-living systems, like batteries and combustion engines, to release energy for various applications.

What is the name of solids whose particles are arranged in a lattice structure?

Crystalline solids have particles arranged in a lattice structure. This regular and repeating pattern of particles gives crystalline solids their well-defined shape and distinct properties.

What can you infer about this source of electricity?

Without more information about the source of electricity, it is difficult to make specific inferences. Different sources, like fossil fuels, nuclear power, or renewable energy, have varying environmental impacts, costs, and reliability. It's important to consider these factors when evaluating a source of electricity.

Where does the energy for rivers come from?

The energy for rivers primarily comes from gravity. Water flows downhill due to gravity, creating the kinetic energy that moves the water downstream. Additionally, sunlight provides energy for the water cycle which drives the movement of water in rivers.

How much heat energy is produced by 0.5 Wh of electrical energy?

0.5 Wh of electrical energy is equivalent to 1.8 kJ (kilojoules) of energy. This amount of energy would be converted into heat energy by an electric heater or device that produces heat.

The law of kinetic energy means?

The law of kinetic energy states that the kinetic energy of an object is directly proportional to its mass and the square of its velocity. This means that as an object's mass or velocity increases, its kinetic energy will also increase. Mathematically, kinetic energy (KE) can be represented as KE = 0.5 * mass * velocity^2.

From which type of energy does the sound of a cymbal come from?

The sound of a cymbal comes from mechanical energy. When the cymbal is struck, it vibrates and creates sound waves in the air, which we perceive as sound.

What energy sources uses chemical energy to produce electrical energy?

Batteries and fuel cells are energy sources that use chemical reactions to produce electrical energy. In batteries, chemical reactions within the cells generate an electrical current, while in fuel cells, hydrogen and oxygen react to produce electricity, heat, and water.

Make a hypothesis state which of three insulating materials you think will keep the inside temperature of the house higher than outside temperature for the longest period of time an explain why?

I hypothesize that the material with the highest R-value, such as fiberglass, will keep the inside temperature of the house higher than the outside temperature for the longest period of time. Materials with higher R-values provide greater resistance to heat flow, meaning they are more effective at keeping heat in or out of a space.

What energy level shell would have the greatest potential energy?

The energy level shell farthest from the nucleus would have the greatest potential energy. As electrons move farther from the nucleus, their potential energy increases due to the increasing distance from the positive charge of the nucleus. This is in line with the understanding that potential energy decreases as an object gets closer to a source of attraction.

Energy transfer by convection is usually restricted to what type of substance?

Energy transfer by convection is usually restricted to fluids, such as air or water. These fluids can transfer heat through the movement of their particles, leading to the transfer of thermal energy.

The capacity for doing work. It may be transformed from one form to another.?

Energy is the capacity to do work and can be converted from one form to another, such as from kinetic to potential energy. This principle is described in the law of conservation of energy, which states that energy cannot be created or destroyed, only converted.

In machines energy is often wasted because of frichion. what forms does this wasted energy take?

The wasted energy due to friction in machines typically transforms into heat energy. This heat energy can lead to inefficiencies, wear and tear of components, and can ultimately reduce the overall performance of the machine.

Which orgnelle converts sugar into energy?

The mitochondria is the organelle that converts sugar into energy through a process called cellular respiration. This process produces ATP (adenosine triphosphate) which is the main source of energy for the cell.

What other form of energy is wasted by the hairdryer?

Apart from electricity, a hairdryer also wastes thermal energy in the form of heat. This is because a hairdryer converts electrical energy into heat energy to dry the hair.

Devices that convert the sun's energy into electrical energy?

Solar panels are devices that convert the sun's energy into electrical energy. These panels contain photovoltaic cells that capture sunlight and convert it into direct current (DC) electricity, which can then be converted into alternating current (AC) electricity for use in homes and businesses.

How does wave energy impact the environment?

Good... waves bring nutrients and food to shore on a regular basis, exposing different ecosystems which are neither suited for water or land but both. There are numerous bird species that live on small sea animals washed ashore. In shallow areas, waves can create sand bars that protect the mainland or even form islands for people. Waves also transfer massive amounts of oxygen into water, that aquatic animal life uses. Waves also increase the absorption of CO2 from air to water.

Bad... erosion. Waves erode beaches and ocean cliffs, witness the reshaping of the coasts.

What energy transfer takes place when steam enters the turbin housing?

i believe it is chemical to kinetic but there is probably no transfer becasue chemical energy is stored energy like in a battery, but steam is i guess kinetic cuz its moving, and turbines definitely are kinetic due to movement, so probably no energy transfer.

When the Sun and radiant energy falls on Earth and oceans it causes water to change state by evaporating. Which form of energy does water vapor have?

Water vapor primarily carries latent heat energy, which is the energy associated with changes in the state of the water (such as from liquid to gas during evaporation). This energy is released when water vapor condenses back into liquid form.

According to the law of conservation of mechanical energy if the only force acting on this pendulum is gravity the total energy of the system is .?

The total mechanical energy of the system is conserved and remains constant as long as the only force acting on the pendulum is gravity. This means that the sum of the kinetic energy and potential energy of the pendulum remains constant throughout its motion.