YR10 Matter Flashcards
Define density?
How much mass is in a certain volume
How do you calculate density?
Mass over volume
How do you measure the density of an irregular object?
The change in water level = volume of object
What is the correct apparatus to measure mass of the objects?
Mass balance
For an irregular object, what can do you place it in with water?
A eureka can
What are the 3 states of matter?
Solid, liquid, gas
What is 2 differences between billing and evaporating?
Boiling can happen at any part of the liquid whereas evaporation only happens at surface of liquid, evaporating is a lot slower
What is the state change from solid to gas?
Sublimation
What is the state change from gas to solid?
Deposition
Does gas have a fixed volume?
NO
Define latent heat?
Energy transferred to a substance when it changes state
What is kinetic energy dependant on?
Temperature
What is internal energy?
Kinetic energy + potential energy
Define internal energy?
The total energy held within the particles of a substance by their movement and relative positions to one another
Define specific latent heat?
The energy transferred per kilogram when a substance changes state