Moments, Pressure & Hooke's Law

ScienceForces & MotionAges 12–14

Calculate the turning effect (moment = force × perpendicular distance), explain how pressure is transmitted equally in liquids (Pascal's principle) and the concept of atmospheric pressure, and describe Hooke's Law (extension ∝ force up to the elastic limit)

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Teaching Table

Set out your lesson

Practise the bounded task in Moments, Pressure & Hooke's Law; see exact limits before inferring broader coverage.

Activity

Multiply/divide and read a graph; distinguish distance from perpendicular distance.

Policy

Exact directed source edges retained; earlier authorship is not learner attainment.

Materials

These supplied stage cards
Scrap paper and pencil; oral/pointing response where appropriate

Sequence

Read readiness and decide on support without treating prerequisite authoring as learner readiness.
Open Show first and explain its model.
Use Guided Try with support and its separate adult key.
Close Show and guided keys before Try, unless this Try is explicitly supported.
Reflect on an actual attempt, including help used.

No Printer

Use the supplied screen cards; copying the exact task to paper is optional, not required.

Privacy

Use only invented scenarios and optional anonymous local notes. Do not request names, photos, family finances, medical data, accounts or uploads. Stop uncomfortable physical activity.

Use the complete materials on screen or print only the current sheet. Keep adult guidance out of learner view. Retain an earlier model only when the current step supplies it as context.

Teaching limits and safe use

These are finite task opportunities, not proof of mastery. Record what was attempted and what support was used.

Atmospheric pressure not assessed; elastic recovery cannot be inferred from loading data alone, so canonical elastic-limit identification blocked. No loaded springs or pressurised apparatus.

Use only invented scenarios and optional anonymous local notes. Do not request names, photos, family finances, medical data, accounts or uploads. Stop uncomfortable physical activity.

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Entire curriculum

1590 concepts · 8 subjects

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Teaching approaches

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Selected Default Gakuva

Practise the bounded task in Moments, Pressure & Hooke's Law; see exact limits before inferring broader coverage.

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Learning resources

External links for extra practice. They do not replace Gakuva’s teaching approach.

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Check understanding

Calculates the moment of a force and uses the principle of moments to solve lever problems
Explains why hydraulic systems can multiply force (pressure transmitted equally)
States Hooke's Law and plots force-extension graphs identifying the elastic limit
Calculates spring constant k from a force-extension graph (k = F/x)

“If your child was using a long spanner to loosen a tight bolt, could they explain why a longer spanner makes it easier — and work out what force would be needed with a spanner of a specific length?”

Curriculum record

Type: Conceptual
Subject: Science
Domain: Forces & Motion
Age range: Ages 12–14

Standards

ngss-ms:MS-PS2-2uk-nc-2013:KS3.Sci.Phys.MotionAndForces.6uk-nc-2013:KS3.Sci.Phys.MotionAndForces.9