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Physics YR 11 > Heating Processes > Flashcards

Heating Processes Flashcards

Specific Heat, Thermal Energy, Thermal Equilibrium, Latent Heat, Conduction, Convection and Radiation

1
Q

What is Heat?

A

Heat is the transfer of thermal energy from hotter to colder bodies.

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2
Q

What is Thermal Energy?

A

Thermal energy is the total kinetic and potential energy of all particles in a substance.

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3
Q

What is Absolute Zero?

A

Absolute zero is the coldest temperature where molecular motion ceases. (-273.15 degrees celsius).

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4
Q

What is Temperature?

A

Temperature is the measure of average kinetic energy of particles in a substance.

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5
Q

What is Specific heat?

A

Specific Heat is the energy needed to raise 1kg of a substance by 1 degree.

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6
Q

What is Latent heat?

A

Latent heat is the energy released or absorbed during a change of state.

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7
Q

What is Latent heat of Fusion?

A

Latent heat of fusion is the energy required to melt solid equals the potential energy required when liquid reforms.

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8
Q

What is Latent heat of vaporisation?

A

Latent heat of vaporisation is energy required to turn liquid to gas equals the potential energy required when gas returns to liquid.

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9
Q

What is Conduction?

A

Conduction is the heat transfered through collisions of particles.

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10
Q

What is a Conductor?

A

Conductor is a substance that readily conducts heat, electricity, sound, or light.

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11
Q

What is the Conservation of Energy?

A

The Conservation of Energy is the total energy that was there before and there after an interaction remains the same.

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12
Q

What is Natural Convection?

A

Natural convection describes the motion of a fluid (liquid or gas) that is caused by natural forces within it. The most common cause is buoyancy: hotter parts of the fluid are less dense, so they float upwards.

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13
Q

What is Forced convection?

A

Forced convection describes the motion of a fluid that is caused by forces outside of it. These forces often move the fluid faster than or in a different direction to natural convection.

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14
Q

What is a Coolant?

A

Coolant is the substance (e.g., water, CO2) transferring thermal energy in a nuclear reactor core.

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15
Q

What is Efficiency?

A

Efficiency is the percentage of energy effectively transformed by a system.

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16
Q

What is Evaporation?

A

Evaporation is the changing of liquid into gas, often influenced by heat.

17
Q

What is Energy?

A

Energy is the ability to do work, having the potential to move objects over a distance.

Physics YR 11 (1 decks)

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