Conceptual Physics Chapter 15 Test Questions with Complete Solutions

Conceptual Physics Chapter 15 Test Questions with Complete Solutions When you touch a cold piece of ice with your finger, energy flows A) from your finger to the ice B) from the ice to your finger C) actually, both ways - Answer-A) from your finger to the ice Heat energy travels from an object with a high A) internal energy to an object with a lower internal energy B) temperature to an object with a lower temperature C) Both of these, for they say essentially the say the same thing D) None of the above choices are true - Answer-B) temperature to an object with a lower temperature Which of the following normally warms up fastest when heat is applied? A) water B) iron C) glass D) wood E) all of the above choices are equally true - Answer-B) iron A substance that heats up relatively quickly has a A) high specific heat B) low specific heat C) high conductivity D) low conductivity - Answer-B) low specific heat The fact that thermometer "takes its own temperature" illustrates A) thermal equilibrium B) energy conservation C) the difference between heat and internal energy D) the fact that molecules are constantly moving - Answer-A) thermal equilibrium Heat energy is measured in units of A) joules. B) calories. C) Choices A and B are both true. D) Choices A and B are both false. - Answer-C) Choices A and B are both true The moderate temperatures of islands throughout the world has much to do with water's A) poor conductivity. B) vast supply of internal energy. C) high specific heat. D) high evaporation rate. E) absorption of solar energy. - Answer-C) high specific heat.