science

Horrocks (crater)

Horrocks (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 Horrocks (crater) rather than just read about it. In short: Horrocks is a lunar impact crater located entirely within the eroded northeast rim of the much larger walled plain named Hipparchus. Its diameter is 30 kilometres (19 mi).

Key takeaways

Horrocks (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 Horrocks (crater) to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Horrocks (crater) from memory before moving on to harder problems.

Reference excerpt

Horrocks is a lunar impact crater located entirely within the eroded northeast rim of the much larger walled plain named Hipparchus. Its diameter is 30 kilometres (19 mi). It was named after the 17th-century English astronomer Jeremiah Horrocks. To the south of Horrocks are the craters Halley and Hind, Rhaeticus is to the north, and Pickering to the northeast. Gyldén and Saunder lie to the west and east, respectively. The rim of Horrocks is somewhat irregular and polygonal, particularly with an outward protrusion on the eastern rim. It has a small outer ridge. The inner wall is slumped, particularly along the northwest where it forms a heap of talus. The interior floor is uneven, and it has a central mountain and hills. The crater is approximately 30 kilometres (19 mi) in diameter and 3 kilometres (1.9 mi) deep. It is from the Eratosthenian period, which lasted from 3.2 to 1.1 billion years ago.

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 Horrocks.

References

External links

Horrocks at The Moon Wiki Wood, Chuck (February 9, 2006). "Layers of History". Lunar Photo of the Day. Archived from the original on June 14, 2011. Wood, Chuck (May 27, 2007). "Drawings". Lunar Photo of the Day. Archived from the original on June 14, 2011. Wood, Chuck (April 30, 2009). "A Little Bit About a Normal Crater (written as A Little Bit about a Normal Crater)". Lunar Photo of the Day.

Illustrations

Worked examples

Example 1 — a first encounter with Horrocks (crater)

Start with the simplest possible case. Write down what Horrocks (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 Horrocks (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 Horrocks (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 Horrocks (crater)

In research: Horrocks (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 Horrocks (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: Horrocks (crater) is common in secondary-school and first-year university syllabi. It links to neighbouring topics Eratosthenian, Impact craters on the Moon, LQ20 quadrangle, so understanding it makes those chapters shorter.
In everyday life: Look for Horrocks (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 Horrocks (crater) in 20 minutes

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

Frequently asked questions

What is Horrocks (crater) in simple terms?

Horrocks is a lunar impact crater located entirely within the eroded northeast rim of the much larger walled plain named Hipparchus. Its diameter is 30 kilometres (19 mi).

Why does Horrocks (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 Horrocks (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 Horrocks (crater).