Study guides, Class notes & Summaries

aqa as physics – mechanics exam questions and answers Weight Mass x Gravitational Field Strength Vector A quantity with size and direction Scalor A quantity with size only Newton's 2nd Law Resultant Force = mass x acceleration Displacement Position of an object relative to an origin Average Speed Distance Travelled / Time taken Instantaneous Speed distance travelled in an instant / time duration of an instant Average Velocity Change in displacement ...

AQA AS Physics - Mechanics and Materials Exam Questions and Answers 100% Pass Scalar A unit with magnitude but no direction. Vector A unit with magnitude and direction. What are the two methods for adding vectors? Scale drawings and trigonometry. Free-body force diagrams Show all the forces acting on a body, each arrow shows the size and the direction of the force. Equilibrium The forces acting on a body are balances and it is not accelerating (it may be at rest or at a...

AQA AS Physics Definitions Exam Questions and Answers 100% Pass Specific charge the charge to mass ratio or charge in coulombs divided by the mass in kilograms Isotope a nucleus with the same number of protons but different number of neutrons Hadron a particle that experiences the strong nuclear force. Composite particles made of either qqq (baryons) or q anti-q (baryon) Antimatter Particles with the same mass but opposite charge Photoelectric effect the emission of ele...

AQA AS Physics FULL SET Exam Questions and Answers 100% Pass Analyse Interpret data to arrive at a conclusion. Annotate Add notation or labelling to a graph, diagram or other drawing. Apply Use information in a new context. Calculate Work out the value of something. Comment Make a judgement based on a value. Compare Identify similarities and/or differences. Construct Assemble a piece of equipment (during practical work). Deduce Draw conclusions from in...

AQA Physics AS Glossary Exam Questions and Answers 100% Pass Antineutrino The antiparticle of a neutrino. Brittle fracture When a stress applied to a brittle material causes tiny cracks at the material's surface to get bigger until the material breaks completely. Absolute refractive index The ratio between the speed of light in a vacuum and the speed of light in a material. Antineutron The antiparticle of a neutron. Antinode A point of maximum amplitude on a stationary...

Physics Waves AQA AS Exam Questions and Answers 100% Pass What does a wave do? Transports energy from one place to another What are mechanical waves? Mechanical waves use particles to transfer energy (neighboring particles bump into each other and set their neighbors moving) What are electromagnetic waves? Electromagnetic waves don't use particle vibration to transfer their energy and can therefore travel through a vacuum. e.g. light What is the unit of frequency? Hertz (Hz)...

Physics Waves AQA AS Questions and Answers 100% Pass How does a wave transfer energy through a medium? By causing the particles in the medium to oscillate Which measurement can take a negative value? Displacement What are the units of displacement? metres (m) What are the units of amplitude? metres (m) What are the units of frequency? hertz (Hz) What is meant by a period of a wave? The time taken for one whole wave cycle What is meant by the frequency of a w...