P6 - Molecules And Matter AND P11 - Wave Properties Flashcards
The Density of a Substance is Defined as its ______ per Unit Volume.
Mass.
Density (__/__) = Mass (__) / Volume (__)
KG/M(cubed)…KG…M(cubed)…
To Measure the Density of a Solid or _________, Measure its Mass and Volume then use the Density.
Liquid.
Objects that have a Lower Density than ________ will Float in Water.
Water.
What is it called when a Solid turns into a Gas?
Sublimation.
How are Particles spaced in Solids?
Tightly Together.
How are Particles spaced in Liquids?
They move about Randomly.
How are Particles spaced in Gases?
They move about Randomly are far apart.
When a Substance changes State, it’s _______ stays the same because the Number of Particles stay the same.
Mass.
The Temperature at which a Solid changes to a Liquid is called the __________ Point.
Melting.
The Temperature at which a Liquid turns to a Gas is called the __________ Point.
Boiling.
The Temperature at which a Liquid changes to a Solid is called the ____________ Point.
Freezing.
What does the Flat Line of a Temperature-Time Graph give?
The Melting or Boiling Point of a Substance.
Energy Transferred to a Substance when it changes its State is called __________ Heat.
Latent.
Energy Stored by the Particles of a Substance is called the Substance’s _____________ Energy.
Internal.
Increasing the Temperature of a Substance _____________ its Internal Energy.
Increases.
The Strength of the Force of _____________ between the Particles of a Substance explains why it is a Solid, Liquid or Gas.
Attraction.
When a Substance is Heated, if its ______________ Rises, the Kinetic Energy of its Particles Increases.
Temperature.
When a Substance is Heated, if it Melts or ______, the Potential Energy of its Particles Increases.
Boils.
The Pressure of a Gas on a Surface is caused by the Particles of the Gas repeatedly hitting the __________.
Surface.
Latent Heat is the _________ needed for a Substance to Change its State without changing its Temperature.
Energy.
Specific Latent Heat of Fusion or Vaporisation is the Energy needed to Melt or Boil 1KG of a Substance without changing its _____________.
Temperature.
Specific Latent Heat of Fusion (__/___) = Energy (__) / Mass (__)
J/KG…J…KG…
What is the Equation for Latent Heat?
E = M x L.
