Define the term 'energy'.
Describe some common forms of energy.
Describe a number of energy transformations.
Define energy efficiency and calculate the efficiency of an appliance.
State the Law of Conservation of Energy.
Define a 'wave' and describe two common waveforms: transverse and longitudinal
Identify the amplitude, frequency and wavelength of waves.
Define and describe sound waves in terms of pitch and loudness.
Describe the basic functioning of the human ear.
Describe some properties of light and give examples of light sources.
Draw ray diagrams and use them to explain shadows.
Observe reflection and use the Law of Reflection to explain observations.
Measure and record angles.
Describe various uses of reflective surfaces.
Observe the effect of convex and concave mirrors on rays of light.
Observe refraction and explain your observations.
Investigate refraction in lenses of various shapes.
Describe the basic function and structure of the human eye.
Investigate the appearance of coloured objects.