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L5 Matter Overall
L5 Matter Overall Assessment Questions
Question | Answer |
---|---|
Total energy related to the motion of the atoms and molecules in an object or sample of matter | Thermal energy |
A measure of the average kinetic energy of the particles of a substance | Temperature |
Thermal energy transferred from a warmer object to a cooler one | Heat |
To change state from a liquid to a gas at the surface of the liquid | Evaporate |
To change state from a solid to a gas | Sublime |
To change state from a gas to a liquid | Condense |
To change state from a gas to a solid | Deposit |
TE = TE | Total Energy = Thermal Energy |
What do you call the average kinetic energy as I took my boat around the lake? | Temperature |
Energy always travels from the _________ object to the __________ object | warmer to cooler |
How do the particles in a warm object move? | the warmer it is the faster the particles move |
You have more thermal energy when an object has... | more particles |
What type of attraction do gas particles have? | weak attraction |
What determines how much thermal energy it takes a substance to change state? | attraction of the particles determines when states change |
If an object gains energy, its particles | will speed up |
The attraction of particles affects the ... | melting points and boiling points |
If particles have a strong attraction they will have .... | high melting/boiling points |
How much energy do warm objects have? | more energy than cooler objects |
If particles have a weak attraction they will have.... | low melting/boiling points |
An example of a substance with a strong attraction is... | water |
An example of a substance with a weak attraction is... | gases |
If an object loses energy, its particles will | slow down |
If you have 2 substances at the same temperature which one will have more thermal energy? | the one with more particles |
How do the particles in a cool object move? | slower moving |
How much energy do cool objects have? | less energy than warmer objects |