physics

Otto Øgrim

Otto Øgrim is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Otto Øgrim rather than just read about it. In short: Johan Otto Øgrim (1 October 1913 – 6 December 2006) was a Norwegian physicist. Personal life Øgrim was born in Copenhagen, Denmark, as a son of Tobias Immanuel Øgrim (1886–1962), leader of the Salvation Army in Norway, and salvationist Othonie Margrethe Olsen (1879–1972).

Key takeaways

Otto Øgrim belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Otto Øgrim to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Otto Øgrim from memory before moving on to harder problems.

Reference excerpt

Johan Otto Øgrim (1 October 1913 – 6 December 2006) was a Norwegian physicist.

Personal life Øgrim was born in Copenhagen, Denmark, as a son of Tobias Immanuel Øgrim (1886–1962), leader of the Salvation Army in Norway, and salvationist Othonie Margrethe Olsen (1879–1972). He spent his childhood years in Kristiania, Bærum and Hamar. In 1938, he married Marit Odlaug Eggen (1915–2008), a daughter of Albert Fredrik Eggen and granddaughter of Lorents Mørkved. Their son Tron Øgrim became an author and political activist. Otto Øgrim's sister married Brynjulf Bull. Otto Øgrim was also the grandfather of rappers Elling and Aslak Borgersrud in Gatas Parlament.

Education and Second World War Øgrim took commercial education at Clark's College, London in 1929. He worked as a bookkeeper's assistant in London for one year before attending middle school in Hamar from 1930 to 1931. He then moved to Oslo to work with advertising and study for the examen artium, which he completed as a private candidate in 1934. During the Second World War, Øgrim together with Arvid Storsveen was central in establishing the secret intelligence organization XU, from its start in the summer of 1940. After Storsveen had to flee to Sweden in 1942 and was shot and killed by the Gestapo in 1943, Øgrim continued as a central XU operative in southern Norway under Øistein Strømnæs and Anne-Sofie Østvedt. He was not exposed before the end of the Occupation of Norway by Nazi Germany in May 1945.

Physicist He graduated with a cand.real. degree with a physics major in 1946. He became a professor of experimental physics at the University of Oslo in 1947. For more than 35 years, Øgrim worked as a lecturer at the Institute of Physics and a prolific textbook author at the University of Oslo. Together with Helmut Ormestad, he was best known for presenting the TV series Fysikk på Roterommet on NRK. The two won the Cappelen Prize in 1983, for work on a widely used series of textbooks at high school level. In 2003, he was appointed honorary member of the Norwegian Physical Society, a Norwegian organization that promotes research in physics.

Selected works Termofysikk, (1971) Mekanisk fysikk, 2 volumes, (1973, 1976)

References

Illustrations

Worked examples

Example 1 — a first encounter with Otto Øgrim

Start with the simplest possible case. Write down what Otto Øgrim claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Otto Øgrim before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Otto Øgrim ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Otto Øgrim

In research: Otto Øgrim appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Otto Øgrim in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Otto Øgrim is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1913 births, 2006 deaths, Academic staff of the University of Oslo, so understanding it makes those chapters shorter.
In everyday life: Look for Otto Øgrim outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Otto Øgrim” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Otto Øgrim in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Otto Øgrim means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Otto Øgrim out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Otto Øgrim in simple terms?

Johan Otto Øgrim (1 October 1913 – 6 December 2006) was a Norwegian physicist. Personal life Øgrim was born in Copenhagen, Denmark, as a son of Tobias Immanuel Øgrim (1886–1962), leader of the Salvation Army in Norway, and salvationist Othonie Margrethe Olsen (1879–1972).

Why does Otto Øgrim matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Otto Øgrim?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Otto Øgrim.