You have left your bicycle outside in the backyard for three hours on a very cold day. Now you decide to go for a ride. The metal handlebars feel colder than the plastic hand-grips because:
Question 4 options:
A) The latent heat of fusion of the plastic is bigger than the latent heat of fusion of the metal.
B) Metal objects are always colder than plastic objects, even when they have been left for several hours in the same surroundings and are at the same temperature.
C) The metal will react chemically with your skin, whereas the plastic does not.
D) The metal conducts heat away faster from your flesh than the plastic does, even though both are at the same temperature.
Physics - bobpursley, Monday, August 15, 2011 at 7:11pm
The first three answers are ridiculous, aren't they?