Topic 10: Energy Flashcards

(37 cards)

1
Q

What is the Law of Conservation of Energy

A

The law that states Energy can’t be created or destroyed

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2
Q

What is Energy?

A

Anything “that can do work”

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3
Q

What is Gravitational?

A

The potential Energy of an object off the ground

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4
Q

What is Chemical?

A

Energy stored in chemical that when react make burning reactions, sound or produce heat

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5
Q

What is Elastic?

A

Energy stored by an elastic object like an elastic or trampoline

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6
Q

What is Nuclear?

A

Energy stored in the nucleus of atoms

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7
Q

What is Electrical?

A

Energy supplied to homes to power appliances and machines

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8
Q

What is Kinetic?

A

Energy possessed by moving objects

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9
Q

What is Heat?

A

Energy that causes gain in temperature

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10
Q

What is light?

A

Energy that may be released

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11
Q

What is Sound?

A

Energy detected by the ear

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12
Q

What is Efficiency?

A

The amount of energy supplied to a device

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13
Q

What is Conduction?

A

The transfer through collisions between particles

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14
Q

What is Deciduous?

A

Tree that loses its leaves in autumn and winter but regain them in spring and summer

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15
Q

What is Luminous?

A

Something that releases its own light

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16
Q

What is Incandescent?

A

Light that is let off with heat

17
Q

What is Bioluminescent?

A

Living things that let off light

18
Q

What is Scattered?

A

A way of describing the direction of light

19
Q

What is a Visible Spectrum?

A

Different colours combined to make white light

20
Q

What is Dispersion?

A

The separation of colours that make white light

21
Q

What is Electromagnetic Radiation?

A

Energy such as infrared, invisible light, X-ray, radio waves and gamma rays released by magnetic or electric fields

22
Q

What is a Electromagnetic Spectrum?

A

A range of wavelengths of energy radiated as electric or magnetic fields.

23
Q

What are Radio Waves?

A

Low energy electromagnetic waves with low frequency and long wavelength

24
Q

What is Infrared Radiation?

A

Invisible radiation emitted by warm objects

25
What are Rays?
Narrow beams of light
26
What is Concave?
A inward curved lens
27
What is Convex?
An outward curved lens
28
What is a Focal Point?
The point where light rays close in
29
What are Vibrations?
Repeated fast, back and forth movement
30
What is Compression?
The process of pushing a material into itself
31
What are Rarefactions?
The layers of air particles that are spread apart
32
What are sound waves
Vibrations in the air
33
What is Frequency?
Number of vibrations or wavelengths in one second
34
What are Hertz?
The unit used for frequency
35
What is Pitch?
The high or low part of sound
36
What is Wavelength?
The distance between two neighbouring crests or troughs of a wave.
37
What is Amplitude?
The maximum distance that a particle moves away from its undisturbed position