Vocabulary
This math term can be found by adding all of the numbers to get a total and then dividing by the number of numbers that were added.
Average
Energy always flow from____________
warm/hot to cold
or
High energy to low energy
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?
the energy has increased
Energy is neither created nor destroyed, it transfers.
true
The following 3 molecules are moving at speeds 1, 2, and 3. What is their temperature?
2
This is the type of energy that an object has because it is moving.
Kinetic Energy
What is thermal energy?
A cold glass of water (Container A) and a hot glass of water (Container B) were placed together. Energy flows from from Container ___ to Container ___ until they reach equilibrium
B to A
In order for substances to reach equilibrium, both of the objects have to transfer temperatures back and forth.
false (Hot substances transfer to colder)
The following 3 molecules are moving at speeds 1, 2, and 3. What is their thermal energy?
6
This is otherwise known as the average kinetic energy
temperature
What is thermal energy?
System A has a 100mL cup of water at 30C inside a 100mL container of 4C water.
System B a 50mL cup of water at 32C inside a 100mL container of 4C water.
Which system will have a higher equilibrium temperature?
System A
It is possible for two objects to be at equilibrium and be at different temperatures.
false
What is the last day of school?
June 14th
The name given to the state of two objects that the same temperature
equilibrium
To find the temperature of an object you need to calculate the ______ ______ _____ of its molecules.
What is average kinetic energy?
When room temperature water is placed in a refrigerator, it gets colder. Explain what happens.
energy from the water transfers to the colder air and the temperature of the water decreases
It is possible for object A to be colder than object B but have more thermal energy than object B.
true
What is the last day to turn in all assignments for Math and Science?
June 12th
The Conservation of Energy or the Law of Conversation of Energy states that: Energy cannot be....
created or destroyed - only transferred
Which has more thermal energy, a bathtub full of water at 50C or a small tea cup of water at 100C?
What is the bathtub?
Ray Deation and his friend Connie Vection shake hands. Ray, who just ran the 2-mile on a hot day, goes to shake Connie's hand (who has been sitting in an air conditioned room at 65 F). Explain what Ray will feel and why.
Connie's hand will feel cold on his because he is much warmer and energy is flowing from his hand to Connie's
If object A (twice the size of object B) and object B reach equilibrium, they will both be at the same temperature but object B will have more thermal energy.
false
What is one thing you are excited for during summer break?
Any answer gets points.