P1.2 Flashcards

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1
Q

Density formula

A

Density = mass/volume

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2
Q

What is density?

A

Density tells you how much mass there is in a given volume

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3
Q

What state has the highest density

A

Solid

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4
Q

Why does solid have the highest density

A

Because there are more particles in a given volume than in a liquid or gas

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5
Q

Density does not only depend on the arrangement of particles but also….

A

…the mass of the particles

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6
Q

What is the units if density

A

Kg/cm3

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7
Q

What is the density of water (h20)

A

1000kg/cm3

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8
Q

What is the mass of 1 litre?

A

1kg

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9
Q

What is the volume of 1000 litres

A

1m3

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10
Q

What is the mass of 1 litre

A

1 kg

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11
Q

What is the mass of 1 ml

A

1 gram

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12
Q

What is the law of conservation of mass?

A

The mass of a substance stays the same throughout a physical change

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13
Q

What is heat?

A
  • thermal energy
  • amount of energy
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14
Q

What is temperature?

A
  • the average kinetic energy of the particles
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15
Q

What is temperature measured in?

A
  • Celsius
  • kelvin
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16
Q

What is the difference between energy and temperature

A
  • Energy depends on the mass of a substance (the larger the mass the more energy needed)
  • temperature is not dependent on the mass
17
Q

What happens when you heat something up

A

Heating can
- change the physical state
- make chemical reactions occur
- change the energy stored in the system

18
Q

What happened when you heat something up

A

When you heat something up energy is transferred from a chemical store in fuel to the particles causing the particle to move faster or vibrate around increasing their kinetic energy which increases the temperature as temperature is the measure of average kinetic energy