Thermal Properties of Matter Flashcards

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1
Q

Internal Energy

A

The internal energy of a substance is the total energy of all the particles in the substance.

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2
Q

Heat capacity

A

Heat capacity is the amount of thermal energy needed to raise the temperature of a substance by 1°C

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3
Q

Specific heat capacity

A

Specific heat capacity is the amount of thermal energy required to raise the temperature of a unit mass of a substance by 1°C

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4
Q

Latent heat

A

Latent heat is the energy released or absorbed by a substance during a change of state, without a change in its temperature

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5
Q

Specific latent heat of fusion

A

Specific latent heat of fusion of a substance is the amount of thermal energy required to change a unit mass of the substance from solid to liquid state, without a change in temperature

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6
Q

Specific latent heat of vaporisation

A

Specific latent heat of a substance is the amount of thermal energy required to change a unit mass of the substance from liquid to gaseous state, without a change in its temperature

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7
Q

The first law of reflection

A

The first law of reflection states that the incident ray, reflected ray and the normal at the point of incidence all lie in the same plane.

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8
Q

Second law of reflection

A

The second law of reflection stated that the angle of incidence is equal to the angle of reflection

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9
Q

Characteristics of a plane mirror image

A
  • The image is of the same size as the object
  • It is laterally inverted
  • It is upright
  • It is virtual
  • It’s distance from the mirror is equal to the distance of the object from the mirror
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10
Q

Laterally inverted image

A

An image whose left-hand side is the right hand side of an object and vice versa

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11
Q

Virtual image

A

An image that cannot be captured on a screen and light rays do not meet at the image position

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12
Q

Real image

A

An image that can be captured on a screen and light rays meet at the image position

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13
Q

Refraction

A

Refraction is the bending of light as lights passes through one optical medium to another

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