The lowest part of a transverse wave.

In longitudinal waves, a region where particles are most closely spaced

In longitudinal waves, a region where particles are most spread out

The maximum displacement a point in a wave vibrates from the neutral position

The distance between one crest or trough of a wave to the next crest or trough.

A measure of the rate at which something occurs; for a wave, the number of cycles completed per second. Measured in Hz.

Electromagnetic Spectrum

The entire range of electromagnetic radiation. Consists of gamma rays, x-rays, ultraviolet, visible light, infrared, microwaves, and radio waves. Travels at the speed of light in a vacuum.

A continuous line or surface that includes all the points reached by a wave at the same instant.

A wave with wavefronts that are parallel.

A line drawn perpendicular to the wavefront showing the direction of energy transfer.

The incoming wave that hits a surface.

To cause a wave (light, sound e.g.) or particle to bounce back off a surface.

The bending of the direction of travel of a ray of light as it enters a medium of a different density, due to the light changing speed.

A number allocated to a medium which describes how much light slows down when it enters. n = c/v

When the angle of refraction equals or succeeds 90 degrees, the reflection of a wave inwards rather than exiting a medium. Occurs when n1 > n2.

The incident angle at which internal reflection occurs, producing an angle of refraction of 90 degrees.

The spreading out of white light into its component colours; occurs as the different wavelengths of visible light refract at different rates.

Kinetic particle model

A model stating that small particles (atoms/molecules) making up all matter have kinetic energy, meaning all particles are in constant motion, even in solids.

A temperature of -273 Celsius or 0 Kelvin. The lowest possible temperature, where particles stop moving

The energy transferred from a hotter object to a cooler one, increasing the kinetic and/or potential energy of the particles in the cooler object.

The energy transferred as a result of a difference in temperature or kinetic energy.

A measure of the average kinetic energy of the particles in a substance, measured in either Celsius or Kelvin.

Energy considered to be "stored" due to position, composition, or arrangement.

The total energy within a substance.

A temperature scale which begins at absolute 0.

A temperature scale based on the melting point of water.

Specific Heat Capacity

The amount of energy that must be transferred to change the temperature of 1 kg of material by 1 degree.

The 'hidden' energy used to change the state of a substance of the same temperature.

Latent Heat of Fusion

The energy required to change 1 kg of solid to a liquid at its melting point.

Latent Heat of Vaporization

The energy required to change 1 kg of liquid to a gas at its boiling point.

A physical change in matter between a solid, liquid, or gas.

The changing of a liquid into a gas.

The movement of energy (e.g., heat) from one object to another without the net movement of particles. Occurs in solids.

A process of heat transfer through a fluid (gas or liquid) by bulk motion of hotter material into a cooler region. Hot material rising, cool material sinking.

The process of heat transfer via light, without the need for a medium.

A substance that readily conducts heat or electricity.

A material that does not easily allow heat or electricity to pass through it.

A wave is a disturbance or vibration that carries energy without a net movement of particles

The time it takes for a wave to move one wavelength in the direction of travel

An imaginary line that extends from the surface of an object and is perpendicular to the surface at that point

A law that describes mathematically the link between the angle of refraction, the angle of incidence and the refractive indices of each medium n1sin1 = n2sin2

An equation that relates the peak wavelength emitted and the temperature of an ideal blackbody

AOS1: Heat, Light and Waves Flashcards

Student preview

52 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Mechanical wave

Back

A wave that propagates as an oscillation of matter and transfers energy through a medium.

2.

FLASHCARD QUESTION

Front

Electromagnetic wave

Back

A wave with two transverse components; a varying magnetic field and a varying electric field. Doesn't require a medium to travel

3.

FLASHCARD QUESTION

Front

Medium

Back

A physical substance, such as air or water, through which a mechanical wave is propagated.

4.

FLASHCARD QUESTION

Front

Transmit

Back

To cause light, heat, sound etc. to pass through a medium.

5.

FLASHCARD QUESTION

Front

Oscillate

Back

To move about an average position in a regular, repetitive or periodic pattern.

6.

FLASHCARD QUESTION

Front

Transverse Waves

Back

A wave in which vibrations are perpendicular to the direction of travel

7.

FLASHCARD QUESTION

Front

Crest

Back

The highest part of a transverse wave.

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