science

Prager (crater)

Prager (crater) is a science 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 Prager (crater) rather than just read about it. In short: Prager is an impact crater on the Moon's far side. It is located just to the northeast of the crater Love.

Key takeaways

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

Reference excerpt

Prager is an impact crater on the Moon's far side. It is located just to the northeast of the crater Love. Farther to the south-southeast lies Lane. To the north of this crater and leading away to the northwest is a crater chain that has been designated Catena Gregory. This is an eroded crater formation, particularly along the northern rim which is cut across by several small craters associated with the Catena Gregory. There is a worn and somewhat elongated crater attached to the southern outer rim. The remainder of the rim is pitted by small and tiny craterlets. The interior floor is also marked by several small craters, including a grouping of three near the midpoint. The crater was named after German-American astronomer Richard Prager by the IAU in 1971. The crater was known as Crater 286 prior to naming.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Prager.

References

Sources

External links

Digital Lunar Orbiter Photo Number I-136-H1

Illustrations

Worked examples

Example 1 — a first encounter with Prager (crater)

Start with the simplest possible case. Write down what Prager (crater) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Prager (crater) 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 Prager (crater) 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 Prager (crater)

In research: Prager (crater) appears in science 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 Prager (crater) 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: Prager (crater) is common in secondary-school and first-year university syllabi. It links to neighbouring topics Impact craters on the Moon, LQ22 quadrangle, so understanding it makes those chapters shorter.
In everyday life: Look for Prager (crater) 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.

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How to study Prager (crater) in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Prager (crater) 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 Prager (crater) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Prager (crater) in simple terms?

Prager is an impact crater on the Moon's far side. It is located just to the northeast of the crater Love.

Why does Prager (crater) matter?

Because it connects several science 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 Prager (crater)?

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 Prager (crater).