Energy

Question 1

Potentional

Answer 1

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

Question 2

Kenetic

Answer 2

Relating to or resulting from motion.

Question 3

Nuclear

Answer 3

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

Question 4

Mechanical

Answer 4

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.

Question 5

Thermal

Answer 5

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

Question 6

Movement

Answer 6

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.

Question 7

Chemical

Answer 7

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

Question 8

Electrical

Answer 8

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

Question 9

Sound

Answer 9

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

Question 10

Gravitational

Answer 10

Relating to movement towards a center of gravity.

Question 11

Light

Answer 11

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

Question 12

Potential Energy

Answer 12

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

Question 13

Kinetic Energy

Answer 13

Energy due to the motion of an object

Question 14

Law of Conservation of Energy

Answer 14

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.

Question 15

Electrical energy

Answer 15

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

Question 16

Gravitational potential energy

Answer 16

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

Question 17

Chemical Energy

Answer 17

Potential energy derived from chemical reactions

Question 18

Elastic potential energy

Answer 18

The potential energy stored in a stretched elastic material

Question 19

Nuclear Energy

Answer 19

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.

Question 20

Efficency

Answer 20

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

Question 21

Insulators

Answer 21

A material that is a poor conductor of heat

Question 22

Convection

Answer 22

Transfer of heat through the flow of particles

Question 23

Radiation

Answer 23

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

Question 24

Radiant heat

Answer 24

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

Question 25

Reflected

Answer 25

Bounced off

Question 26

Transmitted

Answer 26

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

Question 27

Abosorbed

Answer 27

Taken in

Question 28

Conduction

Answer 28

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.

Question 29

Radiation

Answer 29

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

Question 30

Density

Answer 30

The degree of compactness of a substance.

Question 31

Deciduous

Answer 31

Describes plants that lose their leaves during autumn and winter.

Question 32

Luminous

Answer 32

Releasing its own light

Question 33

Incandescent

Answer 33

Describes objects that emit light when they are hot

Question 34

Bioluminescent

Answer 34

Describes living things that release light energy

Question 35

Non-luminous

Answer 35

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

Question 36

Scatterd

Answer 36

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

Question 37

Visible Spectrum

Answer 37

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

Question 38

Dispersion

Answer 38

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

Question 39

Electromagnetic Radiation

Answer 39

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

Question 40

Electromagnetic Spectrum

Answer 40

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

Question 41

Radio Waves

Answer 41

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

Question 42

Infra-red Radiation

Answer 42

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

Question 43

Ultraviolet Radiation

Answer 43

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

Question 44

X-rays

Answer 44

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

Question 45

Gamma rays

Answer 45

High energy electromagnetic radiation produced during nuclear reaction

Question 46

Vibrations

Answer 46

Repeated fast, back-and-forth movements

Question 47

Compression

Answer 47

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

Question 48

Sound Waves

Answer 48

Vibrations of particles in the air

Question 49

Frequency

Answer 49

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

Question 50

Hertz

Answer 50

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

Question 51

Pitch

Answer 51

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

Question 52

Wavelength

Answer 52

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

Question 53

Reverbration

Answer 53

Longer-lasting sound caused by repeated reflection from hard surfaces