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100+ Free Aichi Entrance Science Practice Questions

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2026 Statistics

Key Facts: Aichi Entrance Science Exam

45 min / 22 points

Length and maximum score of each Aichi general-selection subject paper, including science

Aichi Prefectural Board of Education selection results page

4 fields

Physics, chemistry, biology and earth science are all examined in the junior-high science paper

MEXT Course of Study for junior high school science

JPY 2,200

R8 (2026) entrance examination fee for the full-time course

Aichi web application manual

100

Free original MCQ practice questions in this study bank

OpenExamPrep

The Aichi public high school entrance science paper is a 45-minute, 22-point written exam set by the Aichi Prefectural Board of Education, covering physics, chemistry, biology, and earth science from the MEXT junior-high curriculum with heavy experiment and data analysis; since 2023 it is answered entirely on a mark sheet. This page offers 100 original practice questions with English explanations as a study aid — original items, not official past papers.

Sample Aichi Entrance Science Practice Questions

Try these sample questions to test your Aichi Entrance Science exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1In junior high science experiments, an object with a mass of 100 g is taken to have a weight (gravitational force acting on it) of about 1 N. What is the weight of an object with a mass of 350 g?
A.35 N
B.0.35 N
C.3.5 N
D.350 N
Explanation: Weight is proportional to mass at the same location. Since 100 g corresponds to about 1 N, 350 g corresponds to 350/100 = 3.5 N.
2Two forces act on the same object along a straight line: 6 N to the right and 4 N to the left. What is the resultant force (合力) on the object?
A.2 N to the right
B.10 N to the right
C.2 N to the left
D.10 N to the left
Explanation: Forces along the same line in opposite directions are combined by subtraction: 6 N − 4 N = 2 N, acting in the direction of the larger force, which is to the right.
3A force of 60 N acts perpendicularly on a floor over an area of 0.5 m². What is the pressure on the floor?
A.30 Pa
B.12 Pa
C.300 Pa
D.120 Pa
Explanation: Pressure equals force divided by the area over which it acts: P = F/A = 60 N ÷ 0.5 m² = 120 Pa (N/m²).
4Why do wide snowshoes (or skis) keep a person from sinking deeply into snow?
A.They increase the force pressing down on the snow.
B.They spread the same weight over a larger area, reducing the pressure on the snow.
C.They reduce the person's weight.
D.They increase friction so the snow becomes solid.
Explanation: Pressure is force per unit area. Snowshoes keep the downward force (the person's weight) the same but distribute it over a much larger area, so the pressure on the snow is smaller and the person sinks less.
5A ray of light strikes a plane mirror. The angle between the incident ray and the normal is 40°. What is the angle between the reflected ray and the normal?
A.50°
B.90°
C.40°
D.20°
Explanation: By the law of reflection, the angle of incidence equals the angle of reflection, and both are measured from the normal (the line perpendicular to the mirror). So the reflected ray also makes 40° with the normal.
6Light travels from air into water, striking the surface at an angle to the normal. Which statement describes what happens at the boundary?
A.It bends toward the normal, so the angle of refraction is smaller than the angle of incidence.
B.It bends away from the normal, so the angle of refraction is larger than the angle of incidence.
C.It always reflects completely back into the air.
D.It continues straight with no change in direction.
Explanation: Light slows down when it enters water from air, so it refracts toward the normal. The angle of refraction in the water is therefore smaller than the angle of incidence in the air.
7An object is placed beyond the focal point of a convex lens, and a screen on the other side catches a clear image. What does the image on the screen look like?
A.Upright and enlarged
B.Upright and the same size
C.No image can form on the screen
D.Upside down (inverted) and real
Explanation: When the object is beyond the focal length of a convex lens, the refracted rays actually converge on the far side, forming a real image that can be projected on a screen. That real image is always inverted (upside down and left-right reversed).
8You look through a magnifying glass (convex lens) at an object placed closer to the lens than its focal point. What kind of image do you see?
A.An inverted real image on the far side of the lens
B.An upright, enlarged virtual image
C.An inverted, reduced real image
D.No image, because the object is too close
Explanation: With the object inside the focal length, the refracted rays diverge on the far side, so the eye perceives an upright, enlarged virtual image on the same side as the object. This is exactly how a magnifying glass works.
9Which statement about sound is correct?
A.Sound travels fastest through a vacuum.
B.High-pitched sounds travel faster than low-pitched sounds in air.
C.Sound is produced by vibrating objects and needs a medium such as air to travel through.
D.Sound cannot travel through solids.
Explanation: Every sound source — a tuning fork, a string, a speaker — vibrates, and those vibrations are passed on through a medium (gas, liquid, or solid). Sound cannot travel through a vacuum because there is no medium to carry the vibration.
10A student first plucks a guitar string harder, then tightens the same string and plucks it as before. Which statement correctly matches the changes to the sound?
A.Plucking harder increases the amplitude and makes a louder sound; tightening raises the frequency and makes a higher pitch.
B.Plucking harder raises the pitch; tightening makes the sound louder.
C.Both changes only affect the loudness.
D.Tightening the string lowers the pitch because it vibrates faster.
Explanation: Loudness depends on amplitude: plucking harder makes the string vibrate with a larger amplitude, giving a louder sound. Pitch depends on frequency: a tighter string vibrates faster (higher frequency), giving a higher pitch.

About the Aichi Entrance Science Exam

The Aichi Public High School Entrance Examination science paper (rika) is one of the five subject papers in the prefecture-wide academic examination administered by the Aichi Prefectural Board of Education for admission to prefectural public high schools. In the R8 (2026) general selection, every applicant to a full-time course sits all five subjects — Japanese, social studies, mathematics, science, and English — each in 45 minutes and scored out of 22 points. The science paper follows the MEXT Course of Study for junior high school and covers physics (motion, forces, electricity, energy), chemistry (substances, chemical change, ions), biology (cells, life processes, classification, heredity), and earth science (geology, weather, astronomy), with a strong emphasis on interpreting experiments and data. Since the R5 (2023) selection every answer in the full-time general selection is recorded on a mark sheet, adopted so that all schools mark to one standard. Results are combined with the junior-high school report (chousasho) for admission; there is no single passing score. This page provides 100 original English-language practice items as a study adaptation — original items, not official past problems.

Assessment

The real Aichi science subject is one of the five academic subjects (kokugo, shakai, suugaku, rika, eigo) of the prefecture-wide general selection written examination. It covers the four MEXT junior-high fields — physics, chemistry, biology, and earth science — and emphasizes analysis of experiments, observation records, data tables, and graphs. Since the R5 (2023) selection every answer is recorded on a mark sheet, so the official item type is selected-response, as it is here; option counts vary by item and some items must be answered completely (kantou) to score. This local bank is an English-language study adaptation aligned to the same curriculum content, including calculation items such as Ohm's law and concentration; the items are original and are not official past problems.

Time Limit

45 minutes for the science subject paper (R8 / 2026 general selection)

Passing Score

No fixed pass mark; each subject paper is scored out of 22 points and admission combines academic test results with the junior-high school report (chousasho)

Exam Fee

JPY 2,200 entrance examination fee for the full-time general selection (R8 / 2026); JPY 950 for the part-time course; none for the correspondence course (Aichi Prefectural Board of Education)

Aichi Entrance Science Exam Content Outline

About 25% of this practice bank; one of four official fields

Physics

Speed and motion graphs, forces and pressure, series and parallel circuits with Ohm's law calculations, magnets and current, and energy transformations.

About 25% of this practice bank; one of four official fields

Chemistry

States and properties of matter, solutions and concentration, chemical changes with conservation of mass, chemical equations, and acids, alkalis, and ions.

About 25% of this practice bank; one of four official fields

Biology

Cells and microscope observation, photosynthesis and respiration, digestion and circulation, vertebrate classification, and basic heredity.

About 25% of this practice bank; one of four official fields

Earth Science

Strata, fossils, and earthquakes, igneous rocks and volcanoes, humidity and cloud formation, weather fronts, and celestial motion of the sun and moon.

How to Pass the Aichi Entrance Science Exam

What You Need to Know

  • Passing score: No fixed pass mark; each subject paper is scored out of 22 points and admission combines academic test results with the junior-high school report (chousasho)
  • Assessment: The real Aichi science subject is one of the five academic subjects (kokugo, shakai, suugaku, rika, eigo) of the prefecture-wide general selection written examination. It covers the four MEXT junior-high fields — physics, chemistry, biology, and earth science — and emphasizes analysis of experiments, observation records, data tables, and graphs. Since the R5 (2023) selection every answer is recorded on a mark sheet, so the official item type is selected-response, as it is here; option counts vary by item and some items must be answered completely (kantou) to score. This local bank is an English-language study adaptation aligned to the same curriculum content, including calculation items such as Ohm's law and concentration; the items are original and are not official past problems.
  • Time limit: 45 minutes for the science subject paper (R8 / 2026 general selection)
  • Exam fee: JPY 2,200 entrance examination fee for the full-time general selection (R8 / 2026); JPY 950 for the part-time course; none for the correspondence course

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

Aichi Entrance Science Study Tips from Top Performers

1Anchor every physics topic to its formula and units: speed, pressure, current-voltage-resistance, and power items all reduce to correct substitution.
2In chemistry, practice writing and balancing equations and tracking mass before and after a reaction — conservation of mass drives most quantitative items.
3For biology, learn processes as sequences (digestion path, blood circulation loop, photosynthesis inputs and outputs) rather than isolated terms.
4In earth science, connect cause to record: how strata, seismograph traces, weather maps, and star paths each encode what happened.
5When an item shows an experiment, identify the controlled variable and the measured result before reading the answer choices.

Frequently Asked Questions

Is the real Aichi science entrance paper multiple-choice?

Yes, in the sense that answers are selected rather than written. Since the R5 (2023) selection the paper is answered entirely on a mark sheet, introduced so that every school marks to an identical standard. Candidates still have to interpret experiment setups, data tables, and graphs to reach the answer; option counts vary by item and some require a complete (kantou) answer to score.

How long is the Aichi science paper and how is it scored?

The science subject paper lasts 45 minutes and is scored out of 22 points under the current Aichi general selection. Admission combines all five subject results with the junior-high school report (chousasho); there is no fixed passing score.

Does this bank include calculation questions?

Yes. The bank includes genuine computation such as speed, density, Ohm's law, humidity, and solution concentration, with worked explanations for every option.

Who administers the exam and what does it cost?

The Aichi Prefectural Board of Education administers the selection. The R8 (2026) entrance examination fee is JPY 2,200 for the full-time general selection, JPY 950 for the part-time course, and free for the correspondence course.

Where can I find official past papers?

The Aichi prefecture website publishes the current year's problems, answer sheets, and answer keys (for example, the R8 entrance examination problems page on pref.aichi.jp).