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Science > Energy > Flashcards

Energy Flashcards

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Biology 101 flashcards
1
Q

Potentional

A

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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2
Q

Kenetic

A

Relating to or resulting from motion.

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3
Q

Nuclear

A

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

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4
Q

Mechanical

A

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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5
Q

Thermal

A

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

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6
Q

Movement

A

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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7
Q

Chemical

A

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

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8
Q

Electrical

A

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

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9
Q

Sound

A

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

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10
Q

Gravitational

A

Relating to movement towards a center of gravity.

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11
Q

Light

A

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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12
Q

Potential Energy

A

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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13
Q

Kinetic Energy

A

Energy due to the motion of an object

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14
Q

Law of Conservation of Energy

A

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.

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15
Q

Electrical energy

A

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

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16
Q

Gravitational potential energy

A

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

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17
Q

Chemical Energy

A

Potential energy derived from chemical reactions

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18
Q

Elastic potential energy

A

The potential energy stored in a stretched elastic material

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19
Q

Nuclear Energy

A

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.

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20
Q

Efficency

A

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

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21
Q

Insulators

A

A material that is a poor conductor of heat

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22
Q

Convection

A

Transfer of heat through the flow of particles

23
Q

Radiation

A

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

24
Q

Radiant heat

A

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

25
Q

Reflected

A

Bounced off

26
Q

Transmitted

A

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

27
Q

Abosorbed

A

Taken in

28
Q

Conduction

A

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.

29
Q

Radiation

A

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

30
Q

Density

A

The degree of compactness of a substance.

31
Q

Deciduous

A

Describes plants that lose their leaves during autumn and winter.

32
Q

Luminous

A

Releasing its own light

33
Q

Incandescent

A

Describes objects that emit light when they are hot

34
Q

Bioluminescent

A

Describes living things that release light energy

35
Q

Non-luminous

A

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

36
Q

Scatterd

A

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

37
Q

Visible Spectrum

A

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

38
Q

Dispersion

A

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

39
Q

Electromagnetic Radiation

A

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

40
Q

Electromagnetic Spectrum

A

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

41
Q

Radio Waves

A

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

42
Q

Infra-red Radiation

A

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

43
Q

Ultraviolet Radiation

A

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

44
Q

X-rays

A

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

45
Q

Gamma rays

A

High energy electromagnetic radiation produced during nuclear reaction

46
Q

Vibrations

A

Repeated fast, back-and-forth movements

47
Q

Compression

A

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

48
Q

Sound Waves

A

Vibrations of particles in the air

49
Q

Frequency

A

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

50
Q

Hertz

A

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

51
Q

Pitch

A

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

52
Q

Wavelength

A

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

53
Q

Reverbration

A

Longer-lasting sound caused by repeated reflection from hard surfaces

Science (14 decks)

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