Otto Robert Frisch

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/otto-robert-frisch

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. When was Otto Robert Frisch born?October 1, 1904
2. Where was Otto Robert Frisch born?Vienna, Austria
3. What did Otto Frisch discover about atoms?He helped explain how a large atom can split into smaller pieces, a process called nuclear fission, and he was the first to give it that name.
4. How did Frisch help scientists measure the proton?He worked with Otto Stern and Immanuel Estermann in the early 1930s to measure the proton’s magnetic dipole moment, giving scientists important data about the proton’s properties.

Nuclear Magnetic Moment: A measure of the magnetic properties of an atomic nucleus, related to its spin and charge.
Nuclear Fission: A nuclear reaction in which a heavy nucleus splits into two or more lighter nuclei, releasing substantial energy.
Critical Mass: The minimum amount of fissile material needed to sustain a nuclear chain reaction.
Prompt Criticality: A state where a nuclear chain reaction is sustained by prompt neutrons, leading to a rapid power increase.