Energy Part 2 Flashcards
What graph do you use if you are measuring something over a period time?
A line graph.
When you graph what are 3 things every graph must have?
A key, correctly labeled axes, and 3 titles.
Different ______ with the same mass have _____ reactions to the same amount of heat energy. Ex. Just Cool it day 1?
- substances
- different
The ice cube and vinegar cube doesn’t melt in the same way.
Same _____ with different masses react to the same amount of heat energy in what way?
- substances
2. differently
In the make your own cooler lab what was the cooler able to do?
Insulate it which slows down the transfer of heat energy from the air to the beaker of cold water inside the cooler.
What substance will gain more heat energy over time? A larger one of smaller one? Ex. Just Cool it day 2.
A larger one because there is more of it. Ex. The water with the ice pcuk became much colder than the water with the cube. More heat energy was therefore transferred out of the water into the puck.
What does a small temperature change in the make your own cooler lab represent?
It means the cooler wormed because the water did not gain much heat energy.
What would a large change in temp represent in make your own cooler lab?
It means the cooler didn’t work well because the water gained more heat energy.
In the make your own cooler lab what would happen in a warmer environment? Cooler environment?
More heat energy would be transferred. Less heat energy would be transferred.
How can you prevent or slow down the transfer of heat energy?
With substances called insulators.
In the keep it warm lab what did a small temp change in the water represent?
A good insulator because less heat energy was transferred out of the water.
In the keep it warm lab what did it mean if it had a large temp change in the water?
It meant a poor insulator because more heat energy was transferred out of the water.
Energy transfers from _____ regions to _____ regions.
Hotter to colder.
What happens when energy is transferred with warm and cold regions?
It cause warmer region to lose energy (decrease in temp.) and the colder region to gain energy (increase in temp.)
What is thermal energy?
Thermal energy is the motion of atoms or molecules within a substance.
