Iwate Entrance Science case studies
Iwate Entrance Science · Put your knowledge to work in context.
The Iwate University Faculty of Science entrance examination (前期日程, science track) is the written paper used in the first-round admissions schedule for applicants seeking a place in the Faculty of Science. It is intended for high-school graduates and final-year students who have completed the standard science curriculum and who intend to study mathematics, physics, chemistry, biology, or a related field at university level. The Iwate Entrance Science case studies are 5 cases and about 4,030 words.
1Sizing a Cylindrical Hot-Water Tank and Evaluating a Savings Plan
A small brewery is ordering a closed cylindrical hot-water tank with a volume of exactly 2.00 m³. The side wall is made from sheet stainless steel costing 9,000 yen per square metre; the top and bottom disks need extra reinforcement and cost 14,000 yen per square metre.
797 words, about 4 min2Spring Launcher on a Friction Incline: Model versus Measurement
Students launch a 0.40 kg cart from rest up a straight track inclined at 25° to the horizontal. A spring of spring constant 180 N/m is compressed by 0.12 m and released; the cart leaves the spring at the bottom of the incline and slides upward.
799 words, about 4 min3Limestone Purity by Two Methods: Gas Volume and Residue Mass
A student is given 5.00 g of powdered limestone that may contain calcium carbonate mixed with insoluble sand. She adds 100.0 cm³ of 1.00 mol/L hydrochloric acid at 25 °C and collects the gas produced over water in a 1,000 cm³ gas syringe.
819 words, about 4 min4Shell Colour in an Island Snail Population: Selection or Drift?
On a volcanic island, a land snail has two shell colours, dark and pale. Laboratory crosses show dark × pale gives all dark offspring, and the second filial generation splits 3 dark : 1 pale, so dark is dominant.
802 words, about 4 min5Fertiliser and Duckweed Growth: A Flawed Growth Experiment
A student investigates whether a liquid fertiliser increases duckweed growth. In trial 1, ten fronds are placed in a 200 cm³ beaker containing 150 cm³ of pond water plus 2.0 cm³ of fertiliser; ten fronds are placed in a second beaker with 150 cm³ of pond water and no fertiliser.
813 words, about 4 min