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Physics Foundations — Grades 7–9 · KhSearch

Physics Foundations — Grades 7–9

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Physics Foundations — Grades 7–9

Grade 7

Measurement and Matter

SI Units and Metric Conversions
Volume and Liquid Displacement
Mass, Volume, and Density
Average Speed and Journey Time

Forces, Light, and Simple Circuits

Mass and Gravitational Weight
Pressure on a Surface
Angles of Reflection
Cells in Series and Battery Voltage

Grade 8

Forces, Machines, and Work

Resultant Force Along a Straight Line
Moments and Balanced Levers
Mechanical Work by a Parallel Force
Mechanical Power

Energy and Efficiency

Gravitational Potential Energy
Kinetic Energy
Energy Conservation and Efficiency
Joules, Kilojoules, and Kilowatt-Hours

Grade 9

Fluids and Thermal Energy

Pressure at Depth in a Liquid
Buoyancy and Displaced Fluid
Specific Heat Capacity
Specific Latent Heat

Electricity and Energy Transfer

Current, Voltage, and Ohm’s Law
Resistors in Series
Resistors in Parallel
Electrical Power, Energy, and Joule Heating

Documentation/Physics Foundations — Grades 7–9

Physics Foundations — Grades 7–9

Grade 7

Measurement and Matter

SI Units and Metric Conversions
Volume and Liquid Displacement
Mass, Volume, and Density
Average Speed and Journey Time

Forces, Light, and Simple Circuits

Mass and Gravitational Weight
Pressure on a Surface
Angles of Reflection
Cells in Series and Battery Voltage

Grade 8

Forces, Machines, and Work

Resultant Force Along a Straight Line
Moments and Balanced Levers
Mechanical Work by a Parallel Force
Mechanical Power

Energy and Efficiency

Gravitational Potential Energy
Kinetic Energy
Energy Conservation and Efficiency
Joules, Kilojoules, and Kilowatt-Hours

Grade 9

Fluids and Thermal Energy

Pressure at Depth in a Liquid
Buoyancy and Displaced Fluid
Specific Heat Capacity
Specific Latent Heat

Electricity and Energy Transfer

Current, Voltage, and Ohm’s Law
Resistors in Series
Resistors in Parallel
Electrical Power, Energy, and Joule Heating

Physics

Physics Foundations — Grades 7–9

Original bilingual formula companion for secondary foundations, Grades 7–9. Includes 24 lessons with symbols, units, conditions, worked calculations, and practice solutions. Grade placement is a draft review crosswalk, not a complete or officially approved current syllabus.

English · beginner · 24 lessons

Start learning →

Grade 7 · Measurement and Matter

SI Units and Metric Conversions →

Convert length, area, and volume with the correct powers.

Volume and Liquid Displacement →

Measure regular and irregular volumes.

Mass, Volume, and Density →

Calculate density and rearrange its relationship.

Average Speed and Journey Time →

Relate total distance to total elapsed time.

Grade 7 · Forces, Light, and Simple Circuits

Mass and Gravitational Weight →

Calculate gravitational force without confusing it with mass.

Pressure on a Surface →

Relate perpendicular force to contact area.

Angles of Reflection →

Measure light angles from the normal to a mirror.

Cells in Series and Battery Voltage →

Add cell voltages with their orientations accounted for.

Grade 8 · Forces, Machines, and Work

Resultant Force Along a Straight Line →

Combine forces with an explicit direction convention.

Moments and Balanced Levers →

Use perpendicular distances to compare turning effects.

Mechanical Work by a Parallel Force →

Calculate work when force and displacement are aligned.

Mechanical Power →

Calculate the rate of doing work or transferring energy.

Grade 8 · Energy and Efficiency

Gravitational Potential Energy →

Calculate a change in gravitational energy near Earth.

Kinetic Energy →

Relate motion energy to mass and squared speed.

Energy Conservation and Efficiency →

Account for useful output and energy transferred elsewhere.

Joules, Kilojoules, and Kilowatt-Hours →

Convert energy units without confusing energy with power.

Grade 9 · Fluids and Thermal Energy

Pressure at Depth in a Liquid →

Separate pressure due to liquid depth from total pressure.

Buoyancy and Displaced Fluid →

Calculate upthrust using displaced volume.

Specific Heat Capacity →

Calculate energy for a temperature change without a phase change.

Specific Latent Heat →

Calculate energy for a phase change at constant temperature.

Grade 9 · Electricity and Energy Transfer

Current, Voltage, and Ohm’s Law →

Relate charge flow, potential difference, and resistance.

Resistors in Series →

Combine resistances along a single current path.

Resistors in Parallel →

Combine branch conductances and use common voltage.

Electrical Power, Energy, and Joule Heating →

Calculate electrical energy transfer and resistive heating.