Vocabulary
This can be found by adding all of the numbers to get a total and then dividing by the number of numbers that were added.
What is Average?
When a thing gets hotter, it's molecules are moving _____________.
What is faster?
A can of soda has been in a hot car all day. The temperature of the soda has increased, so what has happened to the energy of the molecules of the soda?
What is "the energy/speed has increased"?
The hotter something is, the slower its molecules move.
What is false? (they move faster)
When 2 objects reach the same temperature this is called what?
What is Equilibrium?
This is the type of energy that an object has because it is moving.
What is Kinetic Energy?
Temperature is a measure of the average ______________ of the molecules of a thing?
What is speed?
When room temperature water is placed in a refrigerator, it gets colder. Explain what happens.
What is the energy from the water transferred to the colder air and the temperature of the water decreased?
The average for the following set of numbers is 6.
2, 5, 2, 1, 5
What is false? (average is 3)
The following 3 molecules are moving at speeds 1, 2, and 3. What is their temperature?
What is 2?
This is otherwise known as the average kinetic energy of a thing...
What is temperature?
When a thing gets ______________, its molecules are moving slower.
What is colder?
If a cup of hot water were placed in an enclosed box at room temperature, where would the energy transfer from and to?
What is from the cup of hot water to air in the enclosed box?
The colder something is, the less kinetic energy it has.
What is true?
This is the measurement of energy that food gives us.
What are calories?
This is to reach a conclusion using evidence and reasoning.
What is to infer?
When a thing gets hotter, its ______________ are moving faster and have more kinetic energy.
What are molecules?
A hot glass of water (Container A) and a cold glass of water (Container B) were placed together. This is what happened to the temperature of each container to reach equilibrium.
What is "the energy flows from Container A to Container B until they reach equilibrium"?
If object A has 500 Kj of energy and object B has 300 Kj of energy then when they touch energy will transfer from object A to object B.
What is true?
The following 5 molecules are moving at speeds 1, 4, 2, 1, and 2. What is their thermal energy?
What is 2?
This is a group of atoms joined together in particular way.
What is a molecule?
Temperature is a measure of the average ______________ of the molecules of a thing.
What is kinetic energy?
When you calculate the average speed of the molecules of a substance, you get the temperature of the substance. How do you find the temperature of a substance?
What is get the sum of a set of number by adding them together and dividing by the number of sets?
In order for substances to reach equilibrium, both of the objects have to transfer temperatures back and forth.
What is false? (Hot substances transfer to colder)
The amount of thermal energy an object has depends on?
What is the kinetic energy and amount of molecules an object has?