Particles and Energy MTA Flashcards
What state of matter is represented by the particle model in the image?
Solid
What state of matter is represented by the particle model in the image?
Liquid
What state of matter is represented by the particle model in the image?
Gas
Can you draw a particle model for a solid?
Can you draw a particle model for a liquid?
Can you draw a particle model for a gas?
Describe how particles are arranged in a solid.
Particles are close together
Particles are in a regular arrangement
Particles vibrate on the spot
Describe how particles are arranged in a liquid.
Particles are close together.
Particles are in an irregular arrangement.
Particles can move past each other.
Describe how particles are arranged in a gas.
Particles are far apart.
Particles move randomly in all directions.
Can you compress a solid?
No
Can you compress a liquid?
No
Can you compress a gas?
Yes
Do solids flow?
No
Do liquids flow?
Yes
Do gases flow?
Yes
Which state of matter has a fixed shape unless you apply a force?
Solid
Which state of matter takes the shape of the bottom of a container?
Liquid
Which state of matter takes the shape of the whole container?
Gas
In which two states of matter can particles move?
Liquids and Gases
Name the change of state labelled ‘a’.
Melting
Name the change of state labelled ‘b’.
Freezing
Name the change of state labelled ‘c’.
Boiling
Name the change of state labelled ‘d’.
Condensing
What happens to the particles in a solid when it melts?
The particles gain energy.
The particles vibrate more.
The particles start to move.
What do the horizontal lines on the graph represent?
A change of state
What is diffusion?
The movement of particles from a high to low concentration
What three factors affect the rate of diffusion?
Temperature
Particle Size
The state of the substance that is diffusing
In which state does diffusion happen most quickly?
Gas
In which state does diffusion not happen?
Solid
How does temperature affect diffusion?
The higher the temperature, the faster the rate of diffusion.
How does particle size affect diffusion?
Smaller particles diffuse more quickly than larger particles.
Why does diffusion happen faster at higher temperatures?
The particles are moving faster
Why does diffusion happen faster in gases?
The particles are far apart. They travel a long way before colliding with another particle.
What equation links pressure, force and area.
Pressure = force / area
When you add gas particles to a container, what happens to the pressure inside?
It increases
What causes pressure inside a container?
Particles colliding with the walls of the container
