Shimane Public High School Entrance Examination - Science case studies
Shimane Public High School Entrance Examination - Science · Put your knowledge to work in context.
This independent study page provides practice for Shimane Public High School Entrance Examination - Science. Its editorial learning areas include Physics: measurements, energy and circuits; Chemistry: particles, reactions and mass; Biology: cells, inheritance and evidence; Earth science: time, weather and models. The questions develop subject knowledge and application through worked reasoning, distinctions between competing answers, and practical scenarios. Study the relevant guide before attempting a mixed set, then explain the evidence or calculation that supports each answer. Topics on this exam: Physics: measurements, energy and circuits, Chemistry: particles, reactions and mass, Biology: cells, inheritance and evidence, and Earth science: time, weather and models. The Shimane Public High School Entrance Examination - Science case studies are 4 cases and about 892 words.
1An ideal sliding block and a rough horizontal surface
A classroom model represents a small block as a particle that slides without rolling. It starts from rest at a height of0.80metres above a horizontal surface. The ramp is frictionless, air resistance is ignored and the gravitational field strength is taken as10newtons per kilogram. The block has mass0.50kilograms.
222 words, about 1 min2A supplied reaction mass ratio in a closed model
A simulation studies a reaction in which magnesium and oxygen form only magnesium oxide. For this exercise the reacting mass ratio is supplied as3parts magnesium to2parts oxygen. ContainerA initially holds1.2grams magnesium and1.6grams oxygen. ContainerB initially holds1.2grams magnesium and0.6grams oxygen.
207 words, about 1 min3Expected inheritance ratios and limited evidence
A hypothetical plant has flower color determined by a single gene with allelesR andr. The exercise specifies complete dominance ofR, equal viability of all genotypes, independent offspring and no environmental change in flower color. An Rr plant is crossed with another Rr plant. In a second experiment a red-flowered plant of unknown genotype is crossed with rr and ten offspring are red.
250 words, about 1 min4A changing weather pattern and a cooling parcel
A school weather record gives successive pressure readings of1008,1004,998 and1002hectopascals. The corresponding temperatures are20,22,15 and13degrees Celsius, and the wind changes from southwesterly to northwesterly near the sharp cooling. The class considers whether this pattern is consistent with a cold front, without treating the short record as a complete forecast. In a separate simplified humidity model a constant-volume air parcel at20degrees contains13.6grams of water vapor per cubic metre.
213 words, about 1 min