South Korea · Grade 10

Korea Grade 10 Integrated Science free practice questions with answers

Read question 1 and its full worked answer from paper 1 of our 20-paper Korea Grade 10 Integrated Science set, then download the 3-page PDF. These are original practice questions, not official past papers. Page updated 3 November 2026.

Question 1

표는 두 대상의 크기를 나타낸 것이다. 동물 세포의 크기는 원자의 크기의 몇 배인가? [3점]

<자료> 대상의 크기(지름 또는 길이)

대상

크기(m)

원자

2 × 10-10

동물 세포

5 × 10-5

A 250배

B 2500배

C 25000배

D 125000배

E 250000배

Worked answer

Correct answer: E — 250000배

  • 동물 세포의 크기는 5 × 10-5 m, 원자의 크기는 2 × 10-10 m 입니다.
  • 크기의 비는 (5 × 10-5) ÷ (2 × 10-10) = 2.5 × 105 입니다.
  • 따라서 동물 세포의 크기는 원자의 크기의 250000배입니다.

지수의 곱셈과 나눗셈은 지수끼리 더하고 빼며, 계수의 비는 따로 계산합니다.

Download the free sample: 3 questions and answers (PDF)

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Questions about this sample

What is in the Korea Grade 10 Integrated Science free sample?

The first 3 questions from paper 1 of the set, in the real exam layout, followed by the step-by-step worked answers. It is a 3-page PDF; this page shows question 1 with its answer.

How many full Korea Grade 10 Integrated Science papers are there?

20 original papers for Grade 10 (고1) students in South Korea following the 2022 revised curriculum: Integrated Science. Each is 25 five-choice questions in 40 minutes on the 2022 revised Integrated Science course (science basics, matter and rules, systems and interactions, change and diversity, environment and energy), written in Korean, with a worked solution for every question. Papers start at A$11.99 and download instantly as a PDF.

Are these official past papers?

No. The sample is taken from our own original practice paper and is not an official past paper or affiliated with any exam authority.