Study guides, Class notes & Summaries

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

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

Acceleration change in V per unit t Accurate Measurement obtained using calibrated instruments correctly Alpha radiation Particle consisting of 2 P's and 2 N's Amplitude Max displacement of oscillating particle from equilibrium position Annihilation Particle and antiparticle meet, destroy eachother and emit radiation Antibaryon Hadron w/ 3 quarks Antimatter Antiparticles with same quantum values but opposite charge to corresponding particles

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

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 information provided. Describe Give an account of

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 constant velocity). Moment The turning effect of a force. Moment equation Force x perpendicul...

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 electrons from metal surfaces by light of an appropriate frequency Photon a discre...

A strong interaction between a negative kaon (K−) and a proton (p) produces an omega-minus (Ω−) particle, a neutral kaon (K0) and an unidentified particle Y. The interaction is: K− + p → Ω− + K0 + Y Table 1 contains information on the particles in this interaction. Table 1 K− p Ω− K0 Y Rest energy / MeV 493.8 938..8 493.8 Baryon number +1 +1 0 Charge −1e +1e −1e 0 Strangeness −1 0 −3 +1 0 1 . 1 Complete Table 1. [2 marks] 0 1 . 2 Calculate, in J, the rest en...

A strong interaction between a negative kaon (K−) and a proton (p) produces an omega-minus (Ω−) particle, a neutral kaon (K0) and an unidentified particle Y. The interaction is: K− + p → Ω− + K0 + Y Table 1 contains information on the particles in this interaction. Table 1 K− p Ω− K0 Y Rest energy / MeV 493.8 938..8 493.8 Baryon number +1 +1 0 Charge −1e +1e −1e 0 Strangeness −1 0 −3 +1 0 1 . 1 Complete Table 1. [2 marks] 0 1 . 2 Calculate, in J, the rest en...

AQA AS Physical Chemistry 2024 Exam Questions And Answers Who described atoms as solid spheres that make up different elements and when? - ANSWER- John Dalton in the 19th century Who suggested that atoms of a particular element had the same mass and atoms of different elements had different masses and when? - ANSWER- John Dalton in 1803 Who discovered the electron and when? - ANSWER- JJ Thomson, 1897 discovered electrons proving atoms weren't indivisible or solid. New model named pl...