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Physics > P6 Molecules And Matter > Flashcards

P6 Molecules And Matter Flashcards

1
Q

What is density

A

How much mass is in a given volume

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2
Q

Equation which links density, mass and volume

A

P=m/v density = mass/volume

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3
Q

What does a vernier caliper do

A

accurately measure linear dimensions such as lengths, depths, and diameters.

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4
Q

What does a micrometer do

A

measures the size of a target by enclosing it.

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5
Q

How accurate is a vernier caliper

A

1/10 mm

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6
Q

How accurate is a micrometer

A

1/100 mm

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7
Q

What is the archimedes principle

A

The volume of water that is displaced by a submerged object is the volume of that object

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8
Q

Step 1 of rock density practical

A

Find the mass of your object using a balance

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9
Q

Step 2 of rock density practical

A

Fill up the eureka can to the point just before it comes out of the tube

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10
Q

Step 3 of rock density practical

A

Put a beaker underneath the tube so the displaced water can be collected

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11
Q

Step 4 of rock density practical

A

Get a rock on a string and put it in the water until it displaces it

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12
Q

Step 5 of rock density practical

A

Put the water collected in the beaker into the measuring cylinder this helps you to find out the volume

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13
Q

Property of an object in solid state

A

Keeps the same volume and keeps the same shape. Can’t compress

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14
Q

Property of an object in liquid state

A

Flows and takes up shape of its container. Hard to compress

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15
Q

Property of an object in gas state

A

Flows and expands to fill its container. Can be compressed

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16
Q

Property of particles in a solid

A

Particles vibrate around a fixed position

17
Q

Property of particles in a liquid

A

Particles can move around but stay close together

18
Q

Property of particles in a gas

A

Particles are far apart. Particles move around very fast. When they collide kinetic energy is produced

19
Q

What is absolute zero

A

The lowest temperature something can be

20
Q

What temperature is 0 kelvin (0K) in degrees celcius (°c)

A

-273°c

21
Q

What is the relationship between kelvin and celcius

A

1k=1°C

22
Q

What is the relationship between temperature and particles movement

A

The higher the temperature the faster the movement of particles

23
Q

What is the relationship of average speed of particles and temperature in gases

A

The average speed of particles is directly proportional to temperature

24
Q

What causes the pressure of gases

A

The forces exerted as the particles hit the walls of the container

25
Q

Equation which links pressure force and area

A

Pressure = force/area

26
Q

What is pressure measured in

A

Pascals (Pa) 1Pa=1n/m^2

27
Q

What is specific latent heat

A

The amount of energy needed to change the state of unit mass of a pure substance without a change in temperature.

28
Q

What eqaution links thermal energy, mass and specific latent heat

A

E=ML thermal energy=mass x specific latent heat

29
Q

What is internal energy

A

The total amount of kinetic and potential energy of all particles in a system

30
Q

What equation links thermal energy, mass, specific heat capacity and temperature change

A

E=MC△θ

31
Q

What is specific heat capacity

A

The thermal energy required to raise the temperature of a 1kg material by 1K

32
Q

What is brownian motion

A

Particles in a fluid move in random directions

33
Q

What happens if you decrease the temperature of a balloon

A

It shrinks

34
Q

Relationship between volume and pressure

A

The higher the volume the higher the lower the pressure

35
Q

Relationship between volume and pressure

A

The higher the volume the higher the lower the pressure

Physics (10 decks)

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