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Matter
Phases
Heat
Heat Transfer
Temperature Conversion
100
Intermolecular forces between molecules of a substance are strongest in this state of matter
What is a solid.
100
This is the temperature at which a substance changes from solid to liquid.
What is melting point.
100
This is the sum of all the kinetic energy of all the particles in a sample.
What is thermal energy
100
This is the transfer of thermal energy by the direct contact of particles of matter. This is why a spoon gets hot sitting in a hot cup of coffee.
What is heat conduction.
100
45 degrees celsius equals ___________ F
What is 113 degrees F
200
This is a substance that contains more than one kind of atom, molecule, or compound. Give an example.
What is a mixture. For example: Juice.
200
This is the temperature at which a substance changes from liquid to gas or from gas to liquid. What is water's in degrees Celsius?
What is boiling point. Water's is 100 degrees Celsius.
200
This is a unit of energy. It is the amount of heat energy needed to raise the temperature of 1 gram of water by 1 degree Celsius.
What is a calorie.
200
Thermal conductors conduct heat easily, thermal insulators conduct heat poorly. Which of these is why a down jacket keeps you warm.
What is that its an insulator. The air between the feathers is a poor conductor of heat.
200
0K equals ______________ degrees celsius.
What is -273 degrees C
300
This is substance with the same composition throughout containing two or more different kinds of elements chemically joined. Give an example.
What is a compound. For example: water
300
This phase of matter flows and can expand or contract to fill its container.
What is a gas
300
Heat energy is measured in this unit.
What is a joule. or J.
300
This is how heat energy is transferred from the sun to earth.
What is thermal radiation.
300
100 degrees F equals ___________ degrees C
What is 38 degrees C
400
This is the average random kinetic energy of atoms or molecules within an object. Name two units of measurement.
What is temperature. Fahrenheit and Celsius are units
400
When temperature gets to this measurement molecules have the lowest energy they can have.
What is OK or absolute zero.
400
How much heat energy is needed to raise the temperature of 2kg of concrete from 10 to 30 degrees C? Cp=880
What is 35,200 Joules
400
Heat conduction can not happen in this situation. Hint: air tight thermos.
What is a vacuum.
400
10 degrees F equals _____________ degrees Kelvin
What is 260 K
500
Define an element and give an example
What is a pure substance that cannot be broken down into simpler substances by physical or chemical means. For example: Carbon
500
These are the four states of matter.
What is solid, liquid, gas and plasma.
500
How much heat energy is needed to raise the temperature of 5 kg of gold from 15 to 30 degrees celcius? Cp=129
What is 9675 Joules
500
Why is temperature usually decreased in a baking recipe if you are using a dark coated cookie sheet? Use vocab to answer your question.
What is that dark surfaces absorb more thermal radiation.
500
300 degrees K equals ___________ degrees F
What is 80 degrees F