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WorksheetsUnit 4 Pre Test
Total questions: 20
Worksheet time: 15mins
How do you know this is convection?
Direct contact between pot and fire
Moving liquids indicated by arrows
Heat given off by pot travels through space
what's going to happen as we put the ice into the lemonade?
Heat will flow from the ice to the water
It will stay the temperature of the lemonade
It will stay the temperature of the ice
They will eventually reach the same temperature
Sand on the beach is hotter than water in the lake because it takes less energy for the sun to heat it. Sand has a lower ____________ than water
Caloric content
Thermal energy
Temperature
Specific heat
Molecules do THIS when they heat up
Move faster
Move closer together
Get larger
All of the above
What Law states that energy can't be CREATED or DESTROYED, but it can be CHANGED?
Kinetic Law of Matter
Law of Conservation of Energy
Law of Gravity
Law of Equivalent Energy
In an endothermic reaction, heat is ...
taken in
given out
During an endothermic reaction in a beaker if we touched the beaker, it would feel _______.
Warm
Cold
During a reaction, atoms are
created
destroyed
neither created or destroyed - just rearranged
Is a copper penny turning greenish after a few years a chemical or physical change?
Chemical Change
Physical Change
If substance one and substance two are at the same temperature, which one has more thermal energy?
substance one
substance two
More information is needed.
They have the same energy.
The logs contain_______energy and is converted into________energy
Solar
Electrical
Chemical
Electrical
Thermal
