## PHYS 101 Quiz Temperatures

**PHYS 101 Quiz: Temperatures and Heat**

- What’s wrong with the statement “heat rises?”
- Why do bridges have expansion joints?
- Air at a temperature of 32° F has a relative humidity of 60%. If the temperature of the same air rises to 40° F, the relative humidity
- A hot pizza contains
- specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C A 1 kg block of ice is removed from a freezer where its temperature was – 10°C. The amount of heat absorbed by the ice as it warms to 0°C is
- The warmth you feel from the Sun at the beach is an example of
- A piston compresses a gas, while at the same time heat is lost to the surroundings. The temperature of the gas rises. The amount of temperature rise is governed by
- Which mechanism(s) of heat transfer will work in a vacuum?
- Which are bigger—Celsius degrees or Fahrenheit degrees?
- When water boils, its temperature
- A piece of chocolate melts in your mouth. This is an example of
- In a gas of diferent types of molecules all at the same temperature, the speeds of the heavier molecules will generally be _____________ the speeds of the lighter molecules.
- Which is larger, a calorie or a joule?
- A bimetallic strip is usable as a thermometer because of
- A device that makes use of a bimetallic strip is
- When you add heat to ice, its temperature always stays constant.
- You can increase the temperature of a gas by compressing it.
- As the air cools at night the relative humidity usually drops.
- A wood stove in the corner of a cabin causes the entire cabin to become heated because of heat conduction.
- You feel warm from the Sun at the beach because of heat radiation.
- A hot pizza contains heat.
- A barometer can work because of a bimetallic strip.
- The latent heat of vaporization of water is roughly 10 times the latent heat of fusion of water. The amount of heat required to boil away 1 kg of water is 10 times the amount of heat required to melt 1 kg of ice.
- The specific heat capacity of water is about twice the specific heat capacity of ice. The amount of heat required to boil 1 kg of water is twice the amount of heat required to melt 1 kg of ice.
- Internal energy can only be changed by adding heat
- Select the closest matching pairs possible. 3 pts for each response. Liquids Entropy
- The titanium shell of an SR-71 airplane would expand when flying at a speed exceeding 3 times the speed of sound. If the skin of the plane is 400 degrees C and the linear coefficient of expansion for titanium is 5×10 -6 /C when flying at 3 times the speed of sound, how much would a 10-meter long (originally at 0C) rod portion (1-dimension) of the airplane expand? Write your final answer in centimeters and show all of your work.