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Key Facts: Ehime Entrance Science Exam

50 min / 50 points

Length and maximum score of the Ehime science paper

Ehime Prefectural Board of Education general selection guidelines

5 subjects / 250 points

Five-subject academic examination total score

Ehime Prefectural Board of Education general selection guidelines

JPY 2,200

Entrance examination fee for full-time course

Ehime Prefectural Board of Education general selection guidelines

100

Free original practice questions in this bank

OpenExamPrep

The Ehime public high school entrance science paper is a 50-minute, 50-point written exam set by the Ehime Prefectural Board of Education, covering physics, chemistry, biology, and earth science. This page offers 100 original practice questions with full explanations.

Sample Ehime Entrance Science Practice Questions

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

1A spring extends by 4.0 cm when a 100 g weight is hung from it. Assuming the elastic limit is not exceeded, how much will the spring extend when a 250 g weight is hung from it?
A.10.0 cm
B.8.0 cm
C.6.0 cm
D.12.5 cm
Explanation: According to Hooke's law, the extension of a spring is directly proportional to the force (or weight) applied to it. Hanging a 250 g weight is 2.5 times the force of a 100 g weight (250 / 100 = 2.5). Therefore, the extension is 4.0 cm × 2.5 = 10.0 cm.
2A block with a mass of 500 g sits on a horizontal table. If the contact area between the block and the table is 25 cm², what pressure does the block exert on the table surface? (Assume 100 g exerts a force of 1 N).
A.2000 Pa
B.500 Pa
C.200 Pa
D.5000 Pa
Explanation: A mass of 500 g corresponds to a force of 5 N. The surface area of 25 cm² is equal to 0.0025 m². Pressure is calculated as Force / Area = 5 N / 0.0025 m² = 2000 Pa (N/m²).
3An object moves along a frictionless horizontal floor at a constant speed of 2 m/s. Which statement best describes the forces acting on the object?
A.The net force acting on the object in the horizontal direction is zero.
B.A constant forward force is required to maintain the constant speed.
C.Friction is equal to the weight of the object.
D.Gravity ceases to act on the moving object.
Explanation: According to Newton's first law of motion (law of inertia), an object moving at a constant speed in a straight line on a frictionless surface experiences zero net force. The vertical forces (gravity and normal force) balance out, and no horizontal force is needed to sustain constant motion.
4A cart with a mass of 2.0 kg is pulled along a flat plane. A strobe photograph records its position every 0.1 seconds. If the distance traveled between two consecutive flashes increases uniformly by 4 cm in each 0.1 s interval, what is happening to the cart?
A.The cart is undergoing uniform acceleration.
B.The cart is moving at a constant velocity.
C.The net force on the cart is zero.
D.The cart is decelerating at a constant rate.
Explanation: Since the distance traveled in equal time intervals (0.1 s) increases by a constant amount (4 cm), the speed of the cart is increasing constantly over time. This indicates that the cart is undergoing uniform acceleration driven by a constant net force.
5A beaker containing water sits on a spring scale, registering 500 g. A solid metal block weighing 150 g in air is completely submerged in the water without touching the bottom or sides of the beaker. If the scale now reads 540 g, what is the buoyant force acting on the metal block?
A.0.4 N
B.1.5 N
C.1.1 N
D.0.5 N
Explanation: By Newton's third law, the upward buoyant force exerted by the water on the block equals the downward reaction force exerted by the block on the water. The increase in scale reading is 540 g - 500 g = 40 g. In terms of force (assuming 100 g = 1 N), 40 g corresponds to 0.4 N.
6A light ray travels from air into a rectangular glass block at an incident angle of 45°. Which of the following correctly describes the ray's path inside the glass block?
A.The angle of refraction is smaller than 45° because light bends toward the normal line.
B.The angle of refraction is larger than 45° because light bends away from the normal line.
C.The angle of refraction is exactly equal to 45° because glass does not bend light.
D.The light ray undergoes total internal reflection at the air-glass boundary.
Explanation: When light moves from an optically less dense medium (air) to a denser medium (glass), its speed decreases and it refracts toward the normal line. Consequently, the angle of refraction inside the glass is smaller than the incident angle in air.
7An object is placed at a distance equal to twice the focal length (2f) in front of a convex lens. What are the characteristics of the image formed on the screen behind the lens?
A.Real, inverted, and the same size as the object
B.Real, inverted, and magnified
C.Virtual, upright, and magnified
D.Real, inverted, and diminished
Explanation: When an object is located at 2f from a convex lens, light rays converge at 2f on the opposite side. The resulting image formed on the screen is real, inverted, and exactly the same size as the object.
8A student looks through a convex lens with a focal length of 10 cm at an object placed 5 cm in front of the lens. What type of image does the student observe?
A.An upright, magnified virtual image
B.An inverted, magnified real image
C.An inverted, diminished real image
D.An upright, diminished virtual image
Explanation: When an object is placed inside the focal length of a convex lens (d < f), the light rays diverge after passing through the lens. The back-projected rays form an upright, magnified virtual image on the same side of the lens, functioning as a magnifying glass.
9In a pinhole camera experiment, an illuminated candle of height 12 cm is placed 30 cm away from the pinhole. If the screen is placed 15 cm behind the pinhole, what is the height of the image formed on the screen?
A.6.0 cm
B.24.0 cm
C.12.0 cm
D.3.0 cm
Explanation: By similar triangles, the ratio of image height (h_i) to object height (h_o) equals the ratio of image distance (d_i) to object distance (d_o): h_i / 12 = 15 / 30. Therefore, h_i = 12 × (15 / 30) = 6.0 cm.
10A person stands 340 meters away from a tall vertical cliff and claps their hands once. If the speed of sound in air is 340 m/s, how long does it take for the person to hear the echo?
A.2.0 seconds
B.1.0 second
C.0.5 seconds
D.4.0 seconds
Explanation: The sound must travel to the cliff and reflect back to the person, covering a total round-trip distance of 340 m × 2 = 680 m. Time = Distance / Speed = 680 m / 340 m/s = 2.0 seconds.

About the Ehime Entrance Science Exam

The Ehime Public High School Entrance Examination science paper is set by the Ehime Prefectural Board of Education. The 50-minute, 50-point exam covers physics, chemistry, biology, and earth science. This page provides 100 original practice questions with detailed explanations.

Exam sponsor: Ehime Prefectural Board of Education. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

The real Ehime science subject is a 50-minute paper scored out of 50 points, taken on Day 1 of the two-day entrance examination in early March, between the kokugo papers and social studies. It balances physics, chemistry, biology, and earth science. This local bank is an English-language study adaptation with 100 original practice items.

Time Limit

50 minutes for the science subject paper

Passing Score

No fixed pass mark; scored out of 50 points (250 total across 5 subjects); selection combines academic test results with junior-high report cards (chousasho) and interview

Exam / Certification Fees

JPY 2,200 entrance examination fee for the full-time course per the Ehime Prefectural Board of Education general selection guidelines

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

25% of this practice bank

Physics

Forces, pressure, light reflection/refraction, sound, electric circuits, Ohm's law, magnetic fields, and energy conversion.

25% of this practice bank

Chemistry

Matter properties, solubility, chemical equations, mass ratios in reactions, oxidation/reduction, neutralization, and ionic reactions.

25% of this practice bank

Biology

Plant cells and photosynthesis, human digestion/circulation/nerves, cell division, Mendelian genetics, and food chains.

25% of this practice bank

Earth Science

Volcanic rocks and fossils, stratigraphy, weather fronts and humidity calculation, solar system, moon phases, and seasonal star movement.

Preparing for the Ehime Entrance Science Exam

What You Need to Know

  • Passing score: No fixed pass mark; scored out of 50 points (250 total across 5 subjects); selection combines academic test results with junior-high report cards (chousasho) and interview
  • Assessment: The real Ehime science subject is a 50-minute paper scored out of 50 points, taken on Day 1 of the two-day entrance examination in early March, between the kokugo papers and social studies. It balances physics, chemistry, biology, and earth science. This local bank is an English-language study adaptation with 100 original practice items.
  • Time limit: 50 minutes for the science subject paper
  • Exam / certification fees: JPY 2,200 entrance examination fee for the full-time course per the Ehime Prefectural Board of Education general selection guidelines Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

Ehime Entrance Science: Suggested Study Strategy

1Master Ohm's law and electric power (W = V x A) calculations for physics circuit problems.
2Practice solubility percentage calculations and chemical mass ratio stoichiometry for chemistry.
3Memorize cell organelle functions and human circulatory pathway details for biology.
4Review weather map symbol interpretation and relative humidity calculation using saturation water vapor tables.

Frequently Asked Questions

How is the Ehime science exam structured?

The official 50-minute exam is scored out of 50 points and typically allocates equal weight across the four main fields: physics, chemistry, biology, and earth science.