Calculate the gradient of the distance - time? graph Smooth with its rough surface in contact with the track 5.1​

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

The mantle is made up of which structural zones?