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145 to 168 of 274 topics

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  • Science // Energy

    Ohm's Law: voltage, current, resistance

    Apply Ohm's Law (V = IR) to calculate current, voltage, or resistance in a simple circuit, and explain that resistance opposes the flow of current

    Ages 12 to 13Method
  • Science // Energy

    Series vs parallel circuits

    Describe and apply the rules for current, voltage, and resistance in series and parallel circuits, and explain the practical uses of each circuit type

    Ages 12 to 13Concept
  • Science // Forces & Motion

    Drawing Force Diagrams

    Draw and interpret force diagrams showing forces as labelled arrows — where the arrow's length represents the force's magnitude and its direction shows which…

    Ages 8 to 12Representation
  • Science // Forces & Motion

    Reading Distance-Time Graphs

    Read and plot distance-time graphs for moving objects; interpret the gradient (steepness) of a line as speed; identify stationary periods (horizontal sections)…

    Ages 10 to 13Representation
  • Science // Forces & Motion

    Relative Motion

    Explain relative motion — how the apparent speed and direction of an object depends on the observer's own motion — using everyday examples such as trains and…

    Ages 11 to 12Concept
  • Science // Forces & Motion

    Speed & Distance-Time Graphs

    Calculate average speed using the equation speed = distance ÷ time, represent journeys on distance-time graphs, and interpret gradient as speed and flat…

    Ages 11 to 12Concept
  • Science // Forces & Motion

    Mass vs Weight

    Distinguish between mass (amount of matter, measured in kg) and weight (gravitational force, measured in N), use the equation weight = mass × gravitational…

    Ages 11 to 12Concept
  • Science // Forces & Motion

    Resultant Forces

    Describe forces as vector quantities with both magnitude and direction, distinguish between balanced forces (zero resultant, no change in motion) and unbalanced…

    Ages 11 to 12Concept
  • Science // Forces & Motion

    Magnetic Fields

    Describe magnetic poles (north and south), explain attraction and repulsion between poles, describe magnetic field lines plotted using a compass, and explain…

    Ages 11 to 12Concept
  • Science // Forces & Motion

    Electromagnets

    Describe the magnetic effect of an electric current (a current-carrying wire produces a magnetic field), and investigate how the strength of an electromagnet…

    Ages 12 to 13Concept
  • Science // Forces & Motion

    Investigating Forces

    Plan and carry out investigations into forces, including measuring force with a newton meter, investigating Hooke's Law, and collecting and interpreting motion…

    Ages 12 to 13Method
  • Science // Forces & Motion

    Newton's First & Second Laws

    State and apply Newton's First Law (an object stays at rest or constant velocity unless acted on by a resultant force) and Second Law (force = mass ×…

    Ages 12 to 13Concept
  • Science // Forces & Motion

    Newton's Third Law

    State and apply Newton's Third Law: every force has an equal and opposite reaction force acting on a different object, distinguishing action-reaction pairs from…

    Ages 12 to 13Concept
  • Science // Forces & Motion

    Moments, Pressure & Hooke's Law

    Calculate the turning effect (moment = force × perpendicular distance), explain how pressure is transmitted equally in liquids (Pascal's principle) and the…

    Ages 12 to 14Concept
  • Science // Forces & Motion

    Deformation & Fluid Pressure

    Explain forces associated with deforming objects (elastic and inelastic deformation), thermal expansion and contraction of materials, and how fluid pressure…

    Ages 12 to 13Concept
  • Science // Forces & Motion

    Motors & the Motor Effect

    Explain the motor effect as the force on a current-carrying conductor in a magnetic field, and describe how this principle is used in electric motors and…

    Ages 13 to 14Concept
  • Science // Matter & Materials

    Physical vs Chemical Changes

    Distinguish between physical changes (reversible, no new substances formed) and chemical changes (new substances formed, often irreversible), using conservation…

    Ages 11 to 13Concept
  • Science // Matter & Materials

    Separating Mixtures

    Select and carry out appropriate separation techniques for different types of mixtures: filtration (insoluble solids), distillation (liquids by boiling point)…

    Ages 11 to 13Method
  • Science // Matter & Materials

    Pure Substances & Mixtures

    Distinguish between pure substances and mixtures, identify formulations as useful mixtures with precise compositions, and use melting and boiling points to test…

    Ages 11 to 13Concept
  • Science // Matter & Materials

    The Particle Model

    Use the particle model to explain the properties of solids, liquids, and gases — including differences in arrangement, movement, and spacing — and apply the…

    Ages 11 to 12Concept
  • Science // Matter & Materials

    Atoms, Elements & Compounds

    Explain the differences between atoms, elements, and compounds; describe the simple Bohr model of the atom (nucleus with protons and neutrons, electrons in…

    Ages 11 to 12Concept
  • Science // Matter & Materials

    Metals vs Non-Metals

    Compare the physical and chemical properties of metals and non-metals, explaining metallic properties (malleability, lustre, conductivity) and how position in…

    Ages 11 to 13Concept
  • Science // Matter & Materials

    The Periodic Table

    Describe the organisation of the periodic table into periods and groups, explain the contribution of Mendeleev, and use the table to identify metals…

    Ages 11 to 12Concept
  • Science // Matter & Materials

    How Materials Change State

    Explain melting, freezing, boiling, condensing, and sublimation using the particle model, interpreting heating and cooling curves to identify melting and…

    Ages 11 to 12Concept