Particles:Solids, Liquids and Gases Flashcards
Can gas be compressed?
Yes
Can solids have a fixed volume or shape?
Both
What is air pressure?
It is the force of the particles hitting a surface.
What will happen if there are more particles in the object?
The particles will push outwards and and the objects will expand.
What is Brownian Motion?
- particles in a fluid move randomly
- they bump into larger particles
- larger particles appear to move randomly
What are the four states of scientific theories?
make hypothesis, make a prediction, test the prediction, repeat the experiment.
Why is it so important to repeat the experiment even though the first one might’ve worked?
The area or substance around it could create the product or result instead of the experiment. So you need to test t again to make sure.
What is diffusion?
Diffusion is the movement of particles that allows them to spread out and mix with other particles.
Can diffusion happen in solids? Explain why.
No, because the particles are too compacted together for anything to get through it.
Does it happen faster in liquids or gases?
Gases.
Does diffusion happen faster in higher temperatures or lower temperatures?
Higher temperatures.
