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Flashcards in Energy Deck (53):
1

Potentional

The energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.

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Kenetic

Relating to or resulting from motion.

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Nuclear

The energy released during nuclear fission or fusion, especially when used to generate electricity.

4

Mechanical

In the physical sciences, mechanical energy is the sum of potential energy and kinetic energy. It is the energy associated with the motion and position of an object.

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Thermal

In thermodynamics, thermal energy refers to the internal energy present in a system due to its temperature.

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Movement

In physics, the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.

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Chemical

Chemical energy, Energy stored in the bonds of chemical compounds.

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Electrical

Electrical energy is the energy newly derived from electric potential energy or kinetic energy. W

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Sound

Sound energy is a form of energy associated with the vibration of matter.

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Gravitational

Relating to movement towards a center of gravity.

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Light

Light energy is defined as how nature moves energy at an extremely rapid rate, and it makes up about 99% of the body's atoms and cells, and signal all body parts to carry out their respective tasks

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Potential Energy

Energy that has the potential to do work and so the energy is ‘stored’, such as gravitational energy, elastic energy and chemical energy

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Kinetic Energy

Energy due to the motion of an object

14

Law of Conservation of Energy

A law that states that energy cannot be made or lost. However, energy can be transformed from one type to another or transferred from one object to another.

15

Electrical energy

The energy made available by the flow of electric charge through a conductor.

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Gravitational potential energy

Energy stored due to the height of an object above a base level

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Chemical Energy

Potential energy derived from chemical reactions

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Elastic potential energy

The potential energy stored in a stretched elastic material

19

Nuclear Energy

The energy stored at the center of atoms, the tiny particles that make up all substances. Nuclear energy can be released from the radioactive metals uranium or plutonium, and transformed into electrical energy in a nuclear power station.

20

Efficency

The fraction of energy supplied to a device as useful energy. It is usually expressed as a percentage.

21

Insulators

A material that is a poor conductor of heat

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Convection

Transfer of heat through the flow of particles

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Radiation

A method of heat transfer that does not require particles to transfer heat from one place to another

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Radiant heat

Heat transferred by radiation, as from the sun to the Earth

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Reflected

Bounced off

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Transmitted

Passed through something, such as light or sound passing through air

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Abosorbed

Taken in

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Conduction

The process by which heat or electricity is directly transmitted through the material of a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.

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Radiation

The emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.

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Density

The degree of compactness of a substance.

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Deciduous

Describes plants that lose their leaves during autumn and winter.

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Luminous

Releasing its own light

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Incandescent

Describes objects that emit light when they are hot

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Bioluminescent

Describes living things that release light energy

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Non-luminous

Describes objects that do not emit their own light, but can be seen by reflected light

36

Scatterd

Describes light sent in many directions by small particles within a substance

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Visible Spectrum

Different colours that combine to make up white light; they are separated in rainbows

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Dispersion

Separation of the colours that make up white light. Each colour is bent differently when it enters or leaves a glass prism.

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Electromagnetic Radiation

The radiant energy such as radio waves, infrared, visible light, X-rays and gamma rays released by magnetic or electric fields

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Electromagnetic Spectrum

Complete range of wavelengths of energy radiated as electric and magnetic fields

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Radio Waves

Low energy electromagnetic waves with a much lower frequency and longer wavelength than visible light

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Infra-red Radiation

Low energy electromagnetic waves with a much lower frequency and longer wavelength than visible light

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Ultraviolet Radiation

Invisible radiation similar to light but with a slightly higher frequency and more energy

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X-rays

High energy electromagnetic waves that can be transmitted through solids and provide information about their structure

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Gamma rays

High energy electromagnetic radiation produced during nuclear reaction

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Vibrations

Repeated fast, back-and-forth movements

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Compression

The process rarefaction in sound waves, the layers of air particles that are spread apart (between compression)of pushing a material into itself he process of pushing a material into itself

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Sound Waves

Vibrations of particles in the air

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Frequency

Number of vibrations in one second, or the number of wavelengths passing in one second

50

Hertz

Unit of frequency; its abbreviation is Hz. One hertz is equal to one vibration every second.

51

Pitch

The highness or lowness of a sound. The pitch that you hear depends on the frequency of the vibrating air.

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Wavelength

Distance between two neighboring crests or troughs of a wave. This is the distance between two particles vibrating in step.

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Reverbration

Longer-lasting sound caused by repeated reflection from hard surfaces