## Definitions for mechanical energy

### Princeton's WordNet(2.00 / 1 vote)Rate this definition:

1. mechanical energy(noun)

energy in a mechanical form

### Wiktionary(5.00 / 1 vote)Rate this definition:

1. mechanical energy(Noun)

The sum of the potential energy and kinetic energy of a body or system

### Freebase(5.00 / 1 vote)Rate this definition:

1. Mechanical energy

In science, mechanical energy is the sum of potential energy and kinetic energy. It is the energy associated with the motion and position of an object. The law of conservation of mechanical energy states that in an isolated system that is only subject to conservative forces the mechanical energy is constant. If an object is moved in the opposite direction of a conservative net force, the potential energy will increase and if the speed of the object is changed, the kinetic energy of the object is changed as well. In all real systems, however, non-conservative forces, like frictional forces, will be present, but often they are of negligible values and the mechanical energy's being constant can therefore be a useful approximation. In elastic collisions, the mechanical energy is conserved but in inelastic collisions, some mechanical energy is converted into heat. The equivalence between lost mechanical energy and an increase in temperature was discovered by James Prescott Joule. Many modern devices, such as the electric motor or the steam engine, are used today to convert mechanical energy into other forms of energy, e.g. electrical energy, or to convert other forms of energy, like heat, into mechanical energy.

### Editors Contribution(0.00 / 0 votes)Rate this definition:

1. Mechanical energy

Mechanical energy is energy used to be able to move.

Mechanical energy can be either kinetic energy (energy of motion) or potential energy (stored energy of position). Objects have mechanical energy if they are in motion and/or if they are at some position relative to a zero potential energy position (for example, a brick held at a vertical position above the ground or zero height position).

### Numerology

1. Chaldean Numerology

The numerical value of mechanical energy in Chaldean Numerology is: 7

2. Pythagorean Numerology

The numerical value of mechanical energy in Pythagorean Numerology is: 8

### Sample Sentences & Example Usage

1. The locust uses mechanical energy in addition to its muscle force in order to generate a jump and this is exactly what we are imitating...We are using a tiny motor that generates, or stores mechanical energy, and this mechanical energy in springs is actually very similar to the locust legs is what propels the robot into the air.

# Translations for mechanical energy

### From our Multilingual Translation Dictionary

• energía mecánica
• énergie mécanique
• energia meccanica
• இயந்திர ஆற்றல்

# Translation

#### Find a translation for the mechanical energy definition in other languages:

Select another language:

# Citation

## Use the citation below to add this definition to your bibliography:

Style:MLAChicagoAPA

"mechanical energy." Definitions.net. STANDS4 LLC, 2017. Web. 23 Sep. 2017. <http://www.definitions.net/definition/mechanical energy>.