This simple and easy to use PowerPoint resource provides a useful visual stimulus for discussions on energy efficiency and how the loss of energy can be detrimental to the environment. After discussing dissipation of heat energy, I then introduce the practical investigation. Students are provided with two different light bulbs, a ruler, white piece of paper and a thermometer. Students test to see who of the light bulbs causes the greatest increase in temperature in the thermometer. This light bulb gives out the most heat energy and is therefore the least efficient. This result guides students through planning, recording, analysing and evaluating their experiments.

This fun, creative and easy-to-use resource introduces the equation for density and includes practice questions for students to answer. It also includes a useful visual to help students understand why some objects float whilst others sink and invites students to carry out their own research on Archimedes.

This creative and easy-to-use resource introduces mechanical waves, the key features of waves, and the main differences between longitudinal and transverse waves. It includes links to useful videos on the topic, short activities, and a plenary. Slide 10 of the PowerPoint is the worksheet I hand out to my students, either to fill in as we go through the material or as a revision activity afterwards.

This resource introduces the electromagnetic spectrum, electromagnetic waves and the equation for wave speed. It includes a series of practice questions as well as a fun ‘unscrabble the words’ plenary activity.

The key objective behind this scheme of work is to enable students to draw, interpret and use graphs of motion to analyse the motion of objects. The learning outcomes include: Speed, distance and time Distinguish between (i) distance and displacement and (ii) speed and velocity 2, Give the SI units for distance, displacement, speed and velocity. Define (average) speed as: speed = distance travelled / time taken Solve problems using this equation using correct units. Recognise that (instantaneous) velocity of an object is its (instantaneous) speed in a stated direction. Draw and interpret distance vs time graphs: relating the speed of an object to the gradient of the line (for objects moving quickly, slowly, speeding up, slowing down or stationary) find the speed by calculating the gradient of the graph recognise a negative gradient as motion backwards Acceleration Define acceleration Solve problems for accelerating objects speeding up or slowing down using the equation for acceleration and correct units. Draw and interpret velocity vs time graphs: Relating the gradient of the line to the acceleration of the object Calculating the acceleration from the gradient Relate the acceleration of an object to the application of a (net) force

The key objective behind this scheme of work is to enable students to describe, in words and using mathematics, the essential features of sound and light waves and their propagation. The learning outcomes are detailed below: Features of Waves Describe a progressive wave. Distinguish between transverse and longitudinal waves (with reference to the direction of oscillation of the particles). Give examples of transverse and longitudinal waves. Define the following terms and identify them on diagrams (for transverse waves only): wavelength, amplitude, particle displacement Define the period and frequency of a wave, finding one given the other. Use the wave equation to explore the relationship between the speed of a wave, frequency and wavelength: v=fλ Sound waves Interpret traces of sound waves (made by a CRO, for example) Relate the properties of a sound wave to the pitch, volume and timbre of a sound. Outline and evaluate an experiment to measure the speed of sound in air. Electromagnetic Waves Distinguish between mechanical waves and electromagnetic waves. Outline differences and similarities between sound and light waves. List the components of the electromagnetic spectrum in order of frequency and wavelength. Identify the components of the electromagnetic spectrum that are ionising and discuss their dangers. Give uses for each component of the electromagnetic spectrum (including the use of electromagnetic waves for communication and for medical imaging). Identify that when a wave strikes a surface or change in medium, there will be reflection, transmission and absorption.