Physical World
Free Junior Cycle Science notes for Physical World. Browse 6 topics and read online without an account.
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P DensityDensity tells us how tightly packed the mass is inside a given volume of a material.P ElectricityElectricity is the flow of charge around a closed circuit to transfer energy and power devices.P EnergyEnergy is what makes things happen: it is the ability to do work, and it is measured in joules (J).P ForcesA force is a push or a pull that can change an object's speed, direction, or shape.P MeasurementMeasurement means finding the size of a physical quantity, such as length or mass, using the correct unit and the correct instrument.P TechnologyThis topic explores how electronic components control current in sensing circuits, how energy efficiency is calculated, and how technology affects society…
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