Curriculum
Course: HIA International — Grade 7
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Curriculum

HIA International — Grade 7

Unit 1: Breathing and respiration

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Unit 2: Dissolving, solubility and chromatography

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Unit 3: Forces, motion and pressure

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Unit 4: Ecosystems

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Unit 5: Atoms, purity and climate

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Unit 6: Light and objects in space

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Unit 7: Nutrition, health and movement

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Unit 8: Energy changes and reactions of metals

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Unit 9: Magnetism and electromagnets

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Quiz

3.5 Pressure between solids — Visual & Photo Quiz

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  • Questions count: 1
  • Passing grade: B+
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1.
Look at the photograph comparing wide snowshoes and pointed stiletto heels walking on soft snow. Why do wide snowshoes prevent a person from sinking?
Dr Dabour Hub Academy - figure 1
They spread weight over a much larger surface area, drastically reducing pressure on the snow (Pressure = Force ÷ Area)
They reduce the person's actual body mass
They generate hot steam that repels snow
They create a vacuum beneath the shoe
Part of Unit 3: Forces, motion and pressure — see every lesson and quiz in this unit.
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