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)

21
Q

What is the relationship between kelvin and celcius

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
Equation which links pressure force and area
Pressure = force/area
26
What is pressure measured in
Pascals (Pa) 1Pa=1n/m^2
27
What is specific latent heat
The amount of energy needed to change the state of unit mass of a pure substance without a change in temperature.
28
What eqaution links thermal energy, mass and specific latent heat
E=ML thermal energy=mass x specific latent heat
29
What is internal energy
The total amount of kinetic and potential energy of all particles in a system
30
What equation links thermal energy, mass, specific heat capacity and temperature change
E=MC△θ
31
What is specific heat capacity
The thermal energy required to raise the temperature of a 1kg material by 1K
32
What is brownian motion
Particles in a fluid move in random directions
33
What happens if you decrease the temperature of a balloon
It shrinks
34
Relationship between volume and pressure
The higher the volume the higher the lower the pressure
35
Relationship between volume and pressure
The higher the volume the higher the lower the pressure