Singapore · SEABQ&A
PhysicsQ&A by dot point
A short Q&A bank for every Singapore Physics syllabus dot point. Each question and answer is drawn directly from our worked dot-point page, so you can scan key concepts before opening the long-form answer.
Atomic and Nuclear Physics
- Define half-life and use it in simple calculations, and describe everyday uses and dangers of radioactivity2Q&A pairs
- Describe radioactive decay and compare the nature, charge and penetrating power of alpha, beta and gamma radiation3Q&A pairs
- Describe the structure of the atom in terms of protons, neutrons and electrons, and use proton number and nucleon number to write nuclide notation and identify isotopes2Q&A pairs
Electricity and Circuits
- Describe how current and voltage divide in series and parallel circuits and find combined resistance3Q&A pairs
- Describe charging by friction, the forces between charges, and current as the flow of charge3Q&A pairs
- Define voltage and resistance, and use V = I times R and electrical power P = V times I4Q&A pairs
Energy, Work and Power
- Name the energy stores, describe energy transfers, and state the principle of conservation of energy3Q&A pairs
- Use the formulas for kinetic energy and gravitational potential energy in simple situations3Q&A pairs
- Define work and power, and use work = force times distance and power = work divided by time3Q&A pairs
Forces and Dynamics
- State Newton's laws of motion and use the relationship F = ma for a single resultant force4Q&A pairs
- Describe friction and its effects, and calculate the moment of a force about a pivot2Q&A pairs
- Distinguish scalars from vectors, add forces acting in a line, and state the conditions for equilibrium2Q&A pairs
Magnetism and Electromagnetism
- Describe electromagnetic induction and how a generator and transformer make use of it3Q&A pairs
- Describe the properties of magnets, magnetic materials, and the field around a bar magnet3Q&A pairs
- Describe the magnetic field of a current, the electromagnet, and the force on a current in a field3Q&A pairs
Mass, Weight, Density and Pressure
Measurement and Kinematics
- Interpret distance-time and speed-time graphs, and describe free fall and the effect of air resistance3Q&A pairs
- State the SI base quantities and units, use common prefixes, and choose suitable instruments to measure length and time4Q&A pairs
- Define speed, velocity and acceleration, and calculate each using simple one-step formulas4Q&A pairs
Thermal Physics
- Use specific heat capacity, and explain melting and boiling using latent heat2Q&A pairs
- Explain temperature and thermal energy flow, and describe how a liquid-in-glass thermometer works3Q&A pairs
- Describe conduction, convection and radiation, and explain everyday ways to control heat transfer4Q&A pairs
Waves, Light and Sound
- Define wavelength, frequency, amplitude and speed, and use the wave equation v = f times wavelength1Q&A pairs
- State the law of reflection and describe refraction when light passes between media3Q&A pairs
- Describe sound as a longitudinal wave, explain pitch and loudness, and use distance = speed times time for echoes3Q&A pairs