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Question 1 of 314

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30

📝 Without using a calculator, which number is closest to 49 × 21?

A 900 B 1,000 C 1,200 D 1,500

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Question 2 of 314

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30

🤔 The placebo effect occurs when:

A A treatment works because of its active ingredient B A person's condition improves because they believe they received treatment C Medicine causes side effects D A disease spreads rapidly

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Question 3 of 314

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👧 A doctor measures a patient's pulse immediately after a short sprint. Why is the pulse higher than at rest?

A The body needs to deliver more oxygen to muscles B The bones become heavier C The stomach digests food faster D The lungs stop working

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Question 4 of 314

30

🪐 Which planet has the largest number of confirmed rings?

A Jupiter B Saturn C Uranus D Neptune

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Question 5 of 314

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👵 What is the SI unit of force?

A Joule B Newton C Watt D Pascal

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Question 6 of 314

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🔢 What is the approximate value of π (pi) rounded to two decimal places?

A 2.14 B 3.14 C 3.41 D 4.13

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Question 7 of 314

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❓ Find the missing number. 10, 20, 40, 80, ?, 320

A 120 B 140 C 160 D 180

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Question 8 of 314

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💻 Which storage device has no moving mechanical parts?

A Hard Disk Drive (HDD) B Solid-State Drive (SSD) C DVD D Blu-ray Disc

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