science

Qased

Qased 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 Qased rather than just read about it. In short: Qased (also Ghased; Persian: قاصد, lit. 'Messenger') is a 2000-pound (900 kg) Iranian developed smart bomb. Guidance Qased is a guided precision weapon, but it is not clear whether it is laser-guided or TV-guided.

Key takeaways

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

Reference excerpt

Qased (also Ghased; Persian: قاصد, lit. 'Messenger') is a 2000-pound (900 kg) Iranian developed smart bomb.

Guidance Qased is a guided precision weapon, but it is not clear whether it is laser-guided or TV-guided. TV footage of its test-fire suggests it is TV-guided. It is thought to be for use with Iran's F-4 Phantom II fighter jets. Qassed-3 is a later development with a range of 100 kilometers. The missile, which has previously been showcased during military parades, can be deployed on fighter jets. It is equipped with a micro jet engine that enables it to be fired at a speed of 600 kilometers per hour toward targets, and is guided using a seeker head.

See also Military of Iran Iran's missile forces Iranian military industry Equipment of the Iranian Army

References

External links FARS News Agency, افتتاح خطوط توليد بمب هوشمند 2هزار پوندي قاصد [Production line inauguration photo gallery], 10 July 2011, (in Persian) Youtube, Iran's Qassed-1 (GBU-78/A) [Qased Documentary], IR Iran, 27 April 2012, (in Persian)

Illustrations

Worked examples

Example 1 — a first encounter with Qased

Start with the simplest possible case. Write down what Qased 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 Qased 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 Qased 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 Qased

In research: Qased 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 Qased 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: Qased is common in secondary-school and first-year university syllabi. It links to neighbouring topics Aerial bombs of Iran, Guided bombs, Iranian inventions, so understanding it makes those chapters shorter.
In everyday life: Look for Qased 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 Qased in 20 minutes

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

Frequently asked questions

What is Qased in simple terms?

Qased (also Ghased; Persian: قاصد, lit. 'Messenger') is a 2000-pound (900 kg) Iranian developed smart bomb. Guidance Qased is a guided precision weapon, but it is not clear whether it is laser-guided or TV-guided.

Why does Qased 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 Qased?

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 Qased.