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PE refers to potential energy - the energy of position
KE refers to kinetic energy - the energy related to an object's speed.
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∙ 11y ago
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When a lump of clay is dropped what energy transformations occur?
potential to kinetic to mechanical When clay lands, kinetic (because object is in motion [newton's first law]) to potential
Will law of energy conservation apply to simple pendulum?
Yes, The total amount of energy will always be constant. That is that GPE + KE = Total Energy - external forces(friction, sound, heat, etc.)
What is the Energy that moving things have as a result of their motion?
Kinetic energy KE = mv2 m=mass, v=velocity
What is the mechanical energy on an object?
Mechanical energy is essentially the sum of the potential and kinetic energies acting on a system. In an ideal situation where all forces are conservative, mechanical energy remains constant. NOTE: Potentia Energy (PE) = (mass) * (height in meters) * (9.802 m/s^2) NOTE: Kinetic Energy (KE) = 1/2 * (mass) * (velocity)^2 NOTE: Mechanical Energy (ME) = PE + KE
Which equation expresses the conservation of mechanical energy in a system where the only forms of mechanical energy are kinetic energy and gravitational potential energy?
a. 1/2mvi2 + mghi = 1/2mvf2 + mghf b. 1/2mvi2 + mghi + 1/2kxi2 = 1/2mvf2 + mghf + 1/2kxf2 c. 1/2mvi2 + 1/2kxi2 = 1/2mvf2 + 1/2kxf2 d. MEi = MEf
What is the formula for conservation of mechanical energy?
There are many equations to solve for energy, depending on what form of energy your looking at. For kinetic energy, us KE = (1/2)mv2 where KE is kinetic energy, m is mass, and v is velocity. For potential energy used PE=mgh where PE is potential energy, m is mass, g is gravity, and h is height. Mechanical energy is PE + KE. There are also numerous equations for finding the amount of thermal energy.
What is the sum of potential and and Kinetic energy?
Internal energy at the microscopic level and thermodynamic or mechanical energy at the macroscopic level. According to conservation of energy the sum of kinetic and potential energy is zero.
When a lump of clay is dropped what energy transformations occur?
potential to kinetic to mechanical When clay lands, kinetic (because object is in motion [newton's first law]) to potential
Will law of energy conservation apply to simple pendulum?
Yes, The total amount of energy will always be constant. That is that GPE + KE = Total Energy - external forces(friction, sound, heat, etc.)
Formula for mechanical energy?
potential energy+kinetic energy=mechanical energy
What energy has to do with potential and kinetic energy?
Kinetic Energy+Potential Energy=Mechanical Energy (KE+PE=ME)
What is mechanical energy and how it is converted?
Mechanical energy is sum of the GPE the energy related to position and EPE the elastic energy related to position and the KE the energy related to motion and it is converted to heat energy and you can convert ME to electrical energy A generator is used to convert mechanical energy to electrical energy. A motor converts electrical energy to mechanical energy.
What formula do you use to find mechanical energy?
Flyweel as example: kinetic energy (KE) of a rotating body: KE = 0.5 * I * ((rad / sec)2) Where I is the mass moment of inertia of the flywheel.
What is the Energy that moving things have as a result of their motion?
Kinetic energy KE = mv2 m=mass, v=velocity
What is the mechanical energy on an object?
Mechanical energy is essentially the sum of the potential and kinetic energies acting on a system. In an ideal situation where all forces are conservative, mechanical energy remains constant. NOTE: Potentia Energy (PE) = (mass) * (height in meters) * (9.802 m/s^2) NOTE: Kinetic Energy (KE) = 1/2 * (mass) * (velocity)^2 NOTE: Mechanical Energy (ME) = PE + KE
Which equation expresses the conservation of mechanical energy in a system where the only forms of mechanical energy are kinetic energy and gravitational potential energy?
a. 1/2mvi2 + mghi = 1/2mvf2 + mghf b. 1/2mvi2 + mghi + 1/2kxi2 = 1/2mvf2 + mghf + 1/2kxf2 c. 1/2mvi2 + 1/2kxi2 = 1/2mvf2 + 1/2kxf2 d. MEi = MEf
What two types of energy can make up the mechanical energy of an object?
A generator transforms mechanical energy into electricity, by spinning a magnet in a coil.The regenerative braking system in hybrid cars similarly transforms the braking mechanical energy into electricity.Please see the related links for details.
