CEA AS Syllabus 

In the exam you are expected to be able to: 

Forces, Energy, and Electricity 

1.1 Physical Quantities 

1.1.1 
Describe all physical quantities as consisting of a numerical magnitude and unit; 

1.1.2 
state the base units of mass, length, time, current, temperature, and amount of substance and be able to express other quantities in terms of these units; 

1.1.3 
recall and use the prefixes T, G, M, k, c, m, μ, n, p and f, and present these in standard form. 

Note: You are advised to read the Induction notes in full. Even if the topics or skills are not specified on the syllabus, you will be expected to use them as a matter of course throughout your studies as well as in the examinations. 

1.2 Scalars and Vectors 

1.2.1 
Distinguish between and give examples of scalar and vector quantity; 

1.2.2 
resolve a vector into two perpendicular components; 

1.2.3 
calculate the resultant of two coplanar vectors by calculation or scale drawing, with calculations limited to two perpendicular vectors; 

1.2.4 
solve problems that include two or three coplanar forces acting at a point, in the context of equilibrium. 

1.3 Principle of Moments 

1.3.1 
Define the moment of a force about a point; 

1.3.2 
use the concept of centre of gravity; 

1.3.3 
recall and use the principle of moments. 

Further Examples using Moments are to be found in Mechanics 4 and Mechanics 5 

1.4 Linear Motion 

1.4.1 
Define displacement, velocity, average velocity and acceleration; 

1.4.2 
recall and use the equations of motion for uniform acceleration; (These equations will not appear on the datasheet; you have to learn them. Where the word recall is not shown, these equations are on the datasheet.) 

1.4.3 
describe an experiment using light gates and computer software to measure acceleration of free fall, g; 

1.4.4 
interpret, qualitatively and quantitatively, velocitytime and displacementtime graphs for motion with uniform and nonuniform acceleration. 

1.5 Dynamics 

1.5.1 
Describe projectile motion; 

1.5.2 
explain projectile motion as being caused by a uniform velocity in one direction and a uniform acceleration in a perpendicular direction; 

1.5.3 
apply the equations of motion to projectile motion, excluding air resistance; 

1.6 Newton's Laws of Motion 

1.6.1 
State Newton’s laws of motion; 

1.6.2 
Apply the laws to simple situations; 

1.6.3 
recall and use the equation F = ma, where mass is constant; 

1.6.4 
demonstrate an understanding that friction is a force that opposes motion. 

1.7 Linear Momentum and Impulse 

1.7.1 
Define momentum; 

1.7.2 
calculate momentum; 

1.7.3 
apply the principle of the conservation of linear momentum; 

1.7.4 
perform calculations involving collisions in one dimension; 

1.7.5 
describe and confirm collisions as elastic or inelastic by calculation; 

1.7.6 
define impulse as the product F × t ; 

1.7.7 
recall and use the equation Ft = mv  mu ; 

1.7.8 
apply the impulsemomentum relationship to impact situations; 

1.7.9 
define Newton’s second law in terms of momentum. 

1.8 Work done, Potential Energy, and Kinetic Energy 

1.8.1 
Define work done, potential energy and kinetic energy; 

1.8.2 
show that when work is done, energy is transferred from one form to another; 

1.8.3 
calculate the work done for constant forces, including forces not along the line of motion; 

1.8.4 
recall and use the equations Δp.e. = mgΔh and k.e. = ½ mv² ; 

1.8.5 
state the principle of conservation of energy and use it to calculate exchanges between gravitational potential energy and kinetic energy; 

1.8.6 
use the equation ½mv² ‒ ½ mu² = Fs for a constant force; 

1.8.7 
recall and use P= Work done ÷ time taken, P = Fv and efficiency = useful (energy power) output ÷ energy (power) input ; 

1.8.8 
demonstrate an understanding of the importance to society of energy conservation and energy efficiency. 

1.9 Electric current, Charge, Potential Difference and Electromotive Force 

1.9.1 
Recall and use the equation I = Q/t; 

1.9.2 
recall and use the equations V = W/q, V = P/I; 

1.9.3 
define the volt; 

1.9.4 
define electromotive force, E; 

1.9.5 
distinguish between electromotive force and potential difference. 

1.10 Resistance and resistivity 

1.10.1 
Perform experiments to confirm the relationships between current, voltage and resistance in series and parallel circuits; 

1.10.2 
recall and use the equations for resistors in series and in parallel; 

1.10.3 
recall and use the equations R = V/I and P = I²R ; 

1.10.4 
define resistivity; 

1.10.5 
recall and use the equation R = ρl/A ; 

1.10.6 
perform and describe an experiment to measure resistivity; 

1.10.7 
demonstrate knowledge and simple understanding of superconductivity; 

1.10.8 
state Ohm’s law; 

1.10.9 
distinguish between ohmic and nonohmic behaviour; 

1.10.10 
perform experiments to determine the currentvoltage characteristics for metallic conductors, including wire at a constant temperature and the filament of a bulb; 

1.10.11 
sketch and describe the currentvoltage characteristics for a metallic conductor, a diode and a negative temperature coefficient (ntc) thermistor; 

1.10.12 
sketch and explain the variation with temperature of the resistance of a metallic conductor and a negative temperature coefficient (ntc) thermistor; 

1.10.13 
perform an experiment to show the variation with temperature of the resistance of a negative temperature coefficient (ntc) thermistor. 

1.11 Internal Resistance and Electromotive Force 

1.11.1 
demonstrate an understanding of the simple consequences of internal resistance of a source for external circuits; 

1.11.2 
use the equation V = E  Ir ; 

1.11.3 
perform and describe an experiment to measure internal resistance and the electromotive force; 

1.12 Potential Divider Circuits 

1.12.1 
demonstrate an understanding of the use of a potential divider to supply variable potential difference from a fixed power supply; 

1.12.2 
demonstrate knowledge and understanding of the
use of the potential divider in lighting and heating 

1.12.3 
calculate the output voltages in loaded circuits using the equation:
In the notes, R_{2} is used on the top line of the equation 

Waves, Photons and Astronomy 

2.1 Waves 

2.1.1 
Demonstrate knowledge and understanding of the terms transverse wave and longitudinal wave; 

2.1.2 
categorise waves as transverse or longitudinal; 

2.1.3 
analyse graphs to obtain data on amplitude, period, frequency, wavelength and phase; 

2.1.4 
demonstrate an understanding that polarisation is a phenomenon associated with transverse waves; 

2.1.5 
recall and use the equations f = 1/T and v = fλ ; 

2.1.6 
recall radio waves, microwaves, infrared, visible, ultraviolet, Xrays and gamma rays as regions of the electromagnetic spectrum; 

2.1.7 
state typical wavelengths for each of these regions; 

2.1.8 
recall that the wavelength of blue light is 400 nm and red light is 700 nm. 

2.2 Refraction 

2.2.1 
perform and describe an experiment to verify Snell’s law and measure the refractive index; 
Waves 6 
2.2.2 
recall and use the equations:

Waves 6 
2.2.3 
demonstrate knowledge and understanding of total internal reflection; 
Waves 6 
2.2.4 
recall and use the equation:

Waves 6 
2.2.5 
demonstrate an understanding of the physical principle of the step index optical fibre, including total internal reflection at the core/cladding boundary and the speed in the core; 
Waves 6 
2.2.6 
describe the structure of a flexible endoscope and discuss examples of its application in medicine and industry. 
Medical Physics 6 
2.3 Lenses 

2.3.1 
Draw ray diagrams for converging and diverging lenses; 
Medical Physics 2 
2.3.2 
use the equation:
for converging anddiverging lenses; 
Medical Physics 2 
2.3.3 
verify experimentally the lens equation and the evaluation of f, the focal length of a converging lens, for real images only; 
Medical Physics 2 
2.3.4 
define m as the ratio of the image height to the object height, or: ; (M is used in the notes.) 
Medical Physics 2 
2.3.5 
recall and use the equation:

Medical Physics 2 
2.3.6 
describe the use of lenses to correct myopia and hypermetropia; 
Medical Physics 2 
2.3.7 
perform calculations on the correction of long and short sight, including a calculation of the new range of vision; 
Medical Physics 2 
2.3.8 
perform calculations involving the power of lenses. 
Medical Physics 2 
2.4 Superposition, interference, and diffraction 

2.4.1 
Illustrate the concept of superposition by the graphical addition of two sinusoidal waves; 
Waves 3 
2.4.2 
demonstrate an understanding of the conditions required to produce standing waves; 
Waves 4 
2.4.3 
demonstrate knowledge and understanding of the graphical representation of standing waves in stretched strings, and air in pipes closed at one end; 
Waves 5 
2.4.4 
identify, graphically, the modes of vibration of stretched strings and air in a pipe closed at one end, without reference to overtone and harmonic terminology; 
Waves 5 
2.4.5 
identify node and antinode positions; 
Waves 4 
2.4.6 
perform and describe an experiment to measure the speed of sound in air using a resonance tube (end correction is not required); 
Waves 5 
2.4.7 
demonstrate an understanding of the conditions for observable interference; 
Waves 7 
2.4.8 
demonstrate an
understanding of the significance of path difference and phase
difference in explaining 
Waves 7 
2.4.9 
describe Young’s slits interference experiment to measure the wavelength of monochromatic light; 
Waves 7 
2.4.10 
use the equation: ; (In the notes, the equation used is λ = ws/D) 
Waves 7 
2.4.11 
describe and explain diffraction phenomena at a single slit; 
Waves 8 
2.4.12 
state qualitatively and draw diagrams to illustrate the effect of aperture size on diffraction; 
Waves 8 
2.4.13 
use the equation d sin θ = nλ for a diffraction grating; 
Waves 8 
2.4.14 
describe the use of a diffraction grating and a laser to measure wavelength; 
Waves 8 
2.5 Quantum Physics 

2.5.1 
Recall and use the equation E_{photon} = hf ; 
Particles 3 
2.5.2 
use the photon model to explain the photoelectric effect qualitatively using the terms photon energy and work function; 
Quantum 2 
2.5.3 
use the equation ½mv_{max}^{2} = hf  hf_{0} ; 
Quantum 2 
2.5.4 
demonstrate an understanding that electrons exist in energy levels in atoms; 
Quantum 3 
2.5.5 
recall and use the equation hf = ΔE ; 
Quantum 4 
2.5.6 
provide a simple explanation of laser action, using the terms population inversion and metastable state; 
Quantum Physics 8 
2.5.7 
demonstrate an understanding of the production of Xrays by the process of electron movement between energy levels; 
Medical Physics 7 
2.5.8 
describe the physical principles of CT scanning and conventional Xrays. 
Medical Physics 7 
2.6 Wave Particle Duality 

2.6.1 
Categorise electromagnetic wave phenomena as being explained by the wave model, the photon model or both; 
Particles 3 
2.6.2 
describe electron diffraction; 
Quantum 6 
2.6.3 
use the de Broglie equation: . 
Quantum 6 
2.7 Astronomy 

2.7.1 
Recall, demonstrate an understanding of and apply the classical equations for Doppler shift to find the wavelength of the waves received by a stationary observer from a moving source; 
Astrophysics 7 
2.7.2 
demonstrate an understanding of the difference between cosmological red shift and Doppler red shift; 
Astrophysics 7 
2.7.3 
calculate the cosmological red shift parameter, z, of a receding galaxy using the equation:
and use the equation:
to find the recession speed v, where v << c ; 
Astrophysics 7 
2.7.4 
use Hubble’s Law
v = H_{0}d to estimate the distance, d, to
a distant galaxy, given the value of its speed of 
Astrophysics 7 
2.7.5 
recall and use:
to estimate the age of the universe. 
Astrophysics 7 
That is it for the AS syllabus 