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GCSE Flashcards (Multiple exam boards) > Physics Particle Model March 2018 > Flashcards

Physics Particle Model March 2018 Flashcards

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1
Q

Pressure is directly proportion to what?

A

Temperature

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2
Q

Pressure is inversely proportional to what?

A

Volume

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3
Q

Particles of gas don’t lose …. when colliding into objects and other particles.

A

Kinetic Energy (KE)

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4
Q

What is the definition of Latent Heat?

A

Latent Heat of Fusion = The energy required to change 1 kg of a substance from a solid to a liquid at the same temperature.

Latent Heat of Vapourisation = The energy required to change 1 kg of a substance from a liquid to a gas at the same temperature.

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5
Q

What is the equation for Latent Heat?

A

E = mL

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6
Q

What are the tree states of matter?

A

Solid, Liquid, Gas

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7
Q

In a Solid particles only …………… .

A

Vibrate

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8
Q

In a liquid and gas the particles are ……… to move

A

Free

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9
Q

Explain the speed of particles in solids, liquids and gases

A

In solids the particles vibrate slowly, liquids move at a medium pace and gases move at high speeds.

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10
Q

Explain the spacing of particles in solids, liquids and gases

A

In solids the particles are close together, liquids are slightly further apart and gases have a large space between them.

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11
Q

What is the definition of internal energy?

A

The sum of the total KE and PE of all the particles.

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12
Q

When a substance is a solid, liquid or gas, does the KE or PE increase?

A

KE

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13
Q

If a substance is freezing or condensing, does the PE increase or decrease?

A

Decrease

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14
Q

When a substance is a melting or boiling, does the KE or PE increase?

A

PE

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15
Q

What is the definition of density?

A

Density is how mass is concentrated in a given volume.

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16
Q

What is the equation for density?

A

Density = mass/volume

17
Q

What are the units for density?

A

Small objects : g/cm^3

Large objects : Kg/m^3

18
Q

How do you find the volume of a cube?

A

Height x width x length

19
Q

How do you find the volume of a trapezium?

A

(a + b) x h
________ x length
2

20
Q

How do you find the volume of an irregular shape?

A

Pour what in a measuring cylinder (record ml 1). Then place the irregular object in the water (record ml 2). Now do ml 2 - ml 1. The number will be the volume but in ml. To convert it into cm^3 use this: 1 ml = 1 cm^3

21
Q

What is the definition for Specific Heat Capacity?

A

The energy needed to raise 1 Kg of any substance by 1 degree C.

22
Q

What is the equation for SHC?

A

E = mcΔθ

Δθ = change in temperature

GCSE Flashcards (Multiple exam boards) (48 decks)

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