Physics - Particle Model

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What are the Characteristics of Solids?
Regular structure, low energy, all particles touching
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What are the Characteristics of Liquids?
Irregular structure, most particles touching, medium energy
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What are the Characteristics of Gasses?
Irregular shapes, few particles per space, high energy
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How do you Calculate Density?
Density (KG/M ) = Mass (KG) Volume (M )
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What is Melting and What Affects it?
Melting is a physical change where no new substances are made, and mass is conserved. Impurities can affect melting point
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What is a System?
Energy is stored inside a system by the particles that make up the system. This is called internal energy
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What is the Equation for Specific Heat Capacity?
Change in Energy (J) = Mass (KG) X Specific Heat Capacity X Change in Temperature ( C)
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What Affects the Amount Temperature of a System Increases by?
The mass of the substance heated and it's specific heat capacity
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Why Does Half a Kettle of Water Heat up Quicker than a Full Kettle?
If you pour a cup of water into a pot to boil, more of that mass of liquid's surface area is actually touching the heated surface. As a result, convection occurs quicker and warms the rest of the liquid, causing it to boil.
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Why Does the Line on a Graph Straighten When the Substance is Changing State?
At each of the changings of state, energy id not being used to increase temperature, but instead it is being used to break the inter molecular bonds so the matter can change stae
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What is Specific Latent Heat?
Specific latent heat is the amount of energy that is needed to change a substances state. The specific latent heat is the amount of energy required to change the state without changing the temperature
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What is the Equation for Specific Latent Heat?
Energy (J) = Mass (KG) X Specific Latent Heat (J/KG)
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Why do Gasses Behave as They do?
Because a particle will move more when it has more kinetic energy, and gas particles move very quickly because they have a lot of kinetic energy. The increased movement makes the particles move further apart and become less dense, so they rise
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Why Does a Balloon Stay Blown up?
Because the pressure on the inside pushing out is the same as the pressure on the outside pushing in
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What Does Behavior of Gasses Depend Upon?
Movement, temperature, pressure
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What Happens When you Increase the Temperature of a Gas?
The pressure increases because the particles have more energy and move more, so there are more collisions
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What Happens When you Compress a Gas?
A gas can be compressed because there are spaces between the particles that can be closed. When the volume is then decreased, the pressure increases
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What is Boyle's Law?
Increasing the volume of a gas at a constant temperature leads to a decrease in the pressure
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How do you Calculate Pressure?
Pressure (KPa/M ) = Force (N) Area (M )
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What is a Non-Linear Graph?
A graph where when one axis changes the other changes by a different amount
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What Happens When we Heat a Gas?
Volume + Pressure increase
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What Happens When we Coll a Gas?
Volume + Pressure decrease
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Other cards in this set

Card 2

Front

What are the Characteristics of Liquids?

Back

Irregular structure, most particles touching, medium energy

Card 3

Front

What are the Characteristics of Gasses?

Back

Preview of the front of card 3

Card 4

Front

How do you Calculate Density?

Back

Preview of the front of card 4

Card 5

Front

What is Melting and What Affects it?

Back

Preview of the front of card 5
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