Explain the differences between the live, neutral and earth wires – and their uses – when connected to a kettle. (6marks)

Which type of electromagnetic waves are dangerous enough to be used to kill cancerous cells? (a)gamma rays (b)visible light (c)infrared light (d)microwaves

Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than

Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages