Physics
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Physics tutoring and homework help. Learn concepts like motion and forces, waves and heat and thermodynamics from a highly qualified Physics tutor and get an edge in the subject.
Motion & Forces
Problems involving constant speed and average speed
- Newton's First Law of Motion
- Newton's Second Law of Motion
- Newton's Third Law of Motion
- Universal Law of Gravitation
- Effect of gravity on an object at the surface of the Earth
- Applying a force to an object perpendicular to the direction of its motion
- Circular motion
- Two-dimensional trajectory problems
- Two-dimensional vectors into their components and calculate the magnitude and direction of a vector from its components
- Two-dimensional problems involving balanced forces
- Problems in circular motion, using the formula for centripetal acceleration in the following form: a=v2/r
- Problems involving the forces between two electric charges at a distance (Coulomb's Law) or the forces between two masses at a distance (Universal gravitation)
Conservation of Energy and Momentum
- Calculating Kinetic energy using the formula E=(1/2)mv2
- Calculating changes in gravitational potential energy near the Earth
- Problems involving conservation of energy in simple systems
- Calculating momentum as the product mv
- Momentum as a separately conserved quantity, different from energy
- Change in the momentum of a body
- Problems involving elastic and inelastic collisions in one dimension
- Problems involving conservation of energy in simple systems
Heat & Thermodynamics
- Heat flow and Work - Forms of energy transfer
- First Law of Thermodynamics
- Law of conservation of energy
- Thermal energy
- Distribution of energy levels in a system
- Entropy of a system
- Second Law of Thermodynamics
- Problems involving heat flow, work, and efficiency in a heat engine
Waves
- Waves carry energy from one place to another
- Transverse and longitudinal waves, Seismic waves
- Problems involving wavelength, frequency and wave speed
- Sound waves in a medium
- Radio waves, light and X-rays, electromagnetic waves
- Characteristic properties of waves: interference (beats), diffraction, refraction, Doppler effect, and polarization
Electric & Magnetic Phenomena
- Voltage or current in simple direct current electric circuits
- Problems involving Ohm's law
- Formula for power (rate of energy dissipation) in any resistive circuit element
- Properties of transistors and their role in electric circuits
- Electric fields
- Magnetic fields
- Direction of a magnetic field produced by a current flowing in a straight wire or in a coil
- Magnetic fields producing electric fields, thereby inducing currents in nearby conductors
- Plasmas - the fourth state of matter
- Vector force fields
- Force on a charged particle in an electric field (qE)
- Calculate the electric field resulting from a point charge
- Static electric fields
- Force on a moving particle (with charge q) in a magnetic field [qvB sin(a)]
- Problems involving conservation of energy.
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