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Laws of Conservation of Energy Formulas

Created by

@ExquisiteFauvism

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Questions and Answers

Which ball has the greatest kinetic energy?

All three balls have the same kinetic energy

A larger ball of mass 1.45 kg moving at 2.00 m/s

A smaller ball of mass 0.0145 kg moving at 200 m/s (correct)

A ball of mass 0.145 kg moving at 20.0 m/s

What is the term that represents the amount of work done over a period of time?

Potential energy

Internal energy

Power (correct)

Heat transfer

What type of energy does a baseball pitcher impart to a ball when throwing it?

Kinetic energy (correct)

Heat energy

Internal energy

Potential energy

Which action requires the most energy among these options?

Lifting material to an orbiting space station Signup and view all the answers

What type of energy is associated with an object's position relative to other objects or within a field?

Potential energy Signup and view all the answers

What type of energy is related to the microscopic vibrations and rotations of atoms and molecules in a substance?

Internal energy Signup and view all the answers

Which statement about wars and energy resources is true according to the text?

"Wars have been started because of energy resources." Signup and view all the answers

'A scalar physical quantity associated with the state (or condition) of one or more objects' best defines what term?

Energy Signup and view all the answers

'Investigating natural phenomena and developing models in physics' best represents which goal?

Investigating energy Signup and view all the answers

What does our civilization's basis on acquiring and effectively using energy imply about the importance of energy?

It implies that any type of motion, from flight to lifting, requires a significant amount of energy. Signup and view all the answers

Study Notes

The laws of conservation of energy state that the internal energy of a system is the sum of heat flow and work done on the system.
The relationship between kinetic energy and potential energy is described by the formula KE1 + PE1 = KE2 + PE2.
Total energy is the sum of potential and kinetic energy.
Examples of the law of conservation of energy include torches converting chemical energy to electrical energy and hydroelectric power plants converting potential energy of water to kinetic energy of turbines.
Energy can neither be created nor destroyed, only converted from one form to another or transferred between bodies.

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Description

Explore different formulas related to the laws of conservation of energy, including the internal energy equation (∆E = W + Q) and the relationship between kinetic energy and potential energy. Test your knowledge on energy conversions within a system.