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Does the energy of the substance before the change equal the same energy after the change?
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∙ 11y ago
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∙ 11y ago
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When equal amounts of energy are transferred to or from equal masses of different substance the substance will undergo different changes in temperature because of their different?
substances
How do you calculate change in energy?
The change in potential energy is equal to mass*gravity*change in height
If work done on an object is equal to object's change in kinetic energy this the state of?
the Work-Energy Theorem states the work done is equal to the change in kinetic energy.
Why is gravitational potential energy equal to kinetic ebergy?
Gravitational potential energy is not equal to kinetic energy:MGY doesn't always equal (1/2)mv2. This holds true in the CHANGE of gravitational potential energy being equal to the CHANGE in kinetic energy because of the Law of Conservation of Energy, Mass, and Charge.
Is the kelvin temperature of a substance directly proportional to the total kinetic energy of the particles in the substance?
Yes, temperature and kinetic energy are always equal except when going through a phase change, during which temperature stays the same, potential energy increases, and bonds are made/broken. In the case of gas, kinetic energy is equal to temperature unless condensing or depositing.
What is wrong with this statement, "As a substance freezes, it absorbs energy equal to its enthalpy of fusion"?
There is nothing inherently wrong with the statement "As a substance freezes, it absorbs energy equal to its enthalpy of fusion." In fact, this statement is a well-established scientific principle known as the Enthalpy of Fusion. When a substance changes from a liquid phase to a solid phase (freezing), it undergoes a phase change that requires a specific amount of energy to overcome the intermolecular forces holding the substance together. This energy absorbed is known as the Enthalpy of Fusion, and it is dependent on the substance and specific conditions. Therefore, this statement accurately describes the process of freezing and provides important information about how substances behave during phase changes.
Can heat energy change into mechanical energy with equal ease and with the same efficiency?
yes
How do you find kinetic energy if no final velocity is given?
Kinetic energy is equal to potential energy during the change
What is the amount of energy given off or absorbed when electrons change energy states equal to?
E=hv
What best describes the object's energy as it falls trough the air from the stationary position at height x?
The potential energy it had at height x when it was not moving is equal to the kinetic energy it will have as it is falling. Why? Law of the Conservation of Energy. Energy before will equal energy after.
How does energy change when work is done?
Energy changes and object is equal to the net work done. This is taught in science.
Is the principle that the amount of a physical substance remains the same even if its physical appearance changes?
The principle behind the statement is the law of conservation of energy, which states that;"Energy can neither be created nor be destroyed. It can only be transformed from one form to the other."Hence, irrespective of being a physical or a chemical change, total amount of energy in the initial stage is always equal to the total amount of energy after the change.
