First law of thermodynamics

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/first-law-of-thermodynamics

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific principle?The law of conservation of energy applied to thermodynamic processes
2. What is the thermodynamic implication?Prohibits perpetual motion machines of the first kind
3. What is the Amazing Energy Rule?The Amazing Energy Rule, called the First Law of Thermodynamics, says energy can’t be made or destroyed, only changed from one form to another.
4. Why can't energy disappear?Because energy is a conserved quantity, it stays the same total amount; it just changes shape, like a costume.

Internal Energy (U): The total energy contained within a thermodynamic system at a microscopic level.
Heat (Q): Energy transferred between systems due to a temperature difference.
Work (W): Energy transferred when a force causes displacement, often involving volume changes in gases.
Closed System: A system that can exchange energy but not matter with its surroundings.