Science Flashcards
What is a solids?
Solids-Are regular in their arrangement (organised).All particles are touching and vibrate from a fixed position or shape. They have little Kinetic energy and has a fixed volume.
What is Liquids?
Liquids-Are irregular in arrangement (random) still touching.They can move around more around more freely. They have more Kinetic energy than solids and it can be poured.
What is Gases?
Gases-Have no arrangements the particles move quickly and they have lots of kinetic energy and it’s easy to compressed.
What is compression?
Compression-How something can be squashed.
What is volume?
Volume-How much can be held.
What is shape?
Shape-What it looks like.
Which state of matter can be compressed?
Gas
Which state of matter has a fixed shape?
Solid
Which state of matter has the weakest intermolecular forces?
Gas
Which state of matter has the least energy?
Solid
Give a property of solids that is also a property of liquids
Fixed volume
What does sublimation mean?
Sublimation-Heated up enough to go from Solid-Gas
What does deposition mean?
Deposition-Cooled enough Gas-Solid
What does Evaporation mean?
Evaporation happens at any temperature the melting and boiling point and only happens at the surface.Boiling only occurs at the boiling point.
Changing state
Melting Evaporating
➡️ ➡️
🟣🟣🟣 🟣🟣🟣 🟣 ➡️
🟣🟣🟣 🟣🟣 🟣➡️
🟣🟣🟣 🟣🟣 ⬅️🟣
Solid Liquid Gas
Freezing Condensing
⬅️ ⬅️
What is melting point?
Melting point: The fixed temperature at which a pure solid substance turns from a solid to a liquid.
What is a boiling point?
Boiling point: The fixed temperature at which a pure liquid turns from a liquid into a gas.
For both point:The melting and boiling point will depend of substance.
Look at the diagram
Calculate density
Density = mass➗volume
g/cm3 g cm3
g or kg=grams or kilograms mg=milligram 1000g=1kg 1000mg=1g cm3=centimetres cubed m3=metre cubed g/cm3=grams percentimetre cubed
Every model
E-quation Density = Mass ➗ Volume
V-alues X = g/kg ➗ cm3/m3
E-nter values (correct place)
R-esults ___
Y-units = ___g/cm3
Archimedes Theory
1.Use the balance to measure the mass
of your object.
2.Write the result in your table.
3.Fill the Eureka can until the water is
just below the spout.
4.Hold the measuring cylinder under
the spout.
5.Carefully place the object in the eureka
