7 topics in IB physics bundled together A1,2,3,4 and B1

Applications of the four equations of motion, also known as suvat equations. Problems with hand written solutions.

the torque τ of a force about an axis as given by τ = Fr sin θ • that bodies in rotational equilibrium have a resultant torque of zero • that an unbalanced torque applied to an extended, rigid body will cause angular acceleration • that the rotation of a body can be described in terms of angular displacement, angular velocity and angular acceleration • that equations of motion for uniform angular acceleration can be used to predict the body’s angular position θ, angular displacement Δθ, angular speed ω and angular acceleration α, that the moment of inertia I depends on the distribution of mass of an extended body about an axis of rotation • the moment of inertia for a system of point masses as given by I = Σmr2 • Newton’s second law for rotation as given by τ = Iα where τ is the average torque • that an extended body rotating with an angular speed has an angular momentum L as given by L = Iω • that angular momentum remains constant unless the body is acted upon by a resultant torque

This resource is all in one package to teach or learn the concept of resultant forces . It includes a detailed presentation covering FBD, net forces applying Newton’s first and second and second law The resource is the second subsection A2 under IBDP theme A and also includes syllabus covering A levels and K12 It includes a PPT and worksheet created by me from past paper with ms attached. It also includes my youtube video overing the same topic.

the principle of the conservation of energy • that work done by a force is equivalent to a transfer of energy • that energy transfers can be represented on a Sankey diagram • that work W done on a body by a constant force depends on the component of the force along the line of displacement as given by W = Fs cos θ • that work done by the resultant force on a system is equal to the change in the energy of the system • that mechanical energy is the sum of kinetic energy, gravitational potential energy and elastic potential energy • that in the absence of frictional, resistive forces, the total mechanical energy of a system is conserved • that if mechanical energy is conserved, work is the amount of energy transformed between different forms of mechanical energy in a system

The resource includes tips and tricks to solve sums in projectile motion applying equations of motion. IBDP physics theme A1. It covers Kinematics , equation of motion, projectile motion and motion graphs. Complete resources for teachers and students.

Conservation of energy Emissivity, Albedo, Solar constant Mean value of incoming Solar radiation is S/4

molecular theory in solids, liquids and gases •density ρ as given by ρ = mV • that Kelvin and Celsius scales are used to express temperature • that the change in temperature of a system is the same when expressed with the Kelvin or Celsius that Kelvin temperature is a measure of the average kinetic energy of particles as given by Ek = 3 2 kBT • that the internal energy of a system is the total intermolecular potential energy arising from the forces between the molecules plus the total random kinetic energy of the molecules arising from their random motion • that temperature difference determines the direction of the resultant thermal energy transfer between bodies • that a phase change represents a change in particle behaviour arising from a change in energy at constant temperature • quantitative analysis of thermal energy transfers Q with the use of specific heat capacity c and specific latent heat of fusion and vaporization of substances L as given by Q = mcΔT and Q = mL • that conduction, convection and thermal radiation are the primary mechanisms for thermal energy transfer • conduction in terms of the difference in the kinetic energy of particles • quantitative analysis of rate of thermal energy transfer by conduction in terms of the type of material and cross-sectional area of the material and the temperature gradient as given by ΔQΔt= kAΔTΔx • qualitative description of thermal energy transferred by convection due to fluid density differences • quantitative analysis of energy transferred by radiation as a result of the emission of electromagnetic waves from the surface of a body, which in the case of a black body can be modelled by the Stefan￾Boltzmann law as given by L = σAT4 where L is the luminosity, A is the surface area and T is the absolute temperature of the body