Name several properties of materials that could be exploited to make a thermometer. The lid expands more than the glass so the lid becomes looser. A concrete highway is built of slabs 22 m long. A uniform rectangular plate of length L and width W has coefficient of linear expansion a . The bulb has a volume of 0.250 cm 3 .
Waves carry energy from one place to another without translation of the medium.
The Period, T, is the time taken for the wave to complete one cycle. A wave travelling to the left has a plus sign in the argument of the sine. Explain the difference between the speed of a transverse wave travelling down a rope and the speed of a tiny piece of the rope. 15 m. Find how fast the waves are travelling. Find the wavelengths of these signals.