Exam 10: Temperature and Heat

Which object is hotter?

The air at the beach is the same temperature everywhere, but you feel cooler under a beach umbrella because

You lose your left sandal during a hot afternoon at the beach. Thus, you must hike back to your vehicle with one bare foot across the burning sand. Why does the bare foot get so much hotter?

An ice cube is floating in a glass of water with the water level just reaching the top of the glass. If the temperature in the surrounding area is above freezing, the ice cube will melt. When it does,

On a cold day, a metal fence post feels colder to the touch than a tree. This sensation of different temperatures is explained by the fact that

Water freezes at 273 on the ________ scale.

Compare the internal energy of one gram of steam to that of one gram of water if both are at 100 $\degree$ C.

When you apply an alcohol swab to your skin, it feels cool because

The lowest possible temperature a body can approach is called

On a cold winter's morning you awake and step out of bed. One foot is on the tile floor and the other is on a rug on the floor. Which statement is true?

When the temperature of the air in a balloon is raised, the volume of the balloon

The temperature of a sample of a substance is a way to gauge

Heat will not be transferred between two bodies that are at the same ____________________.

When water boils, the primary form of heat flow in the water is ____________(conduction, convection, radiation).

During the course of a demonstration the professor is called away. When he returns he finds a beaker of water that was at room temperature is now at a slightly higher temperature. There is a stirring rod on the desk and a cigarette lighter. The professor can assume that the temperature increase is due to

Two identical objects, one light colored and the other dark colored, are at the same elevated temperature, 50 $\degree$ C. You now place them in a dark, much cooler room. Which object will reach the room's temperature first?

The temperature of 100 g of water is to be raised from 10 $\degree$ C to 90 $\degree$ C. The energy needed to do this is about

Which of the following temperatures is the lowest?

The transfer of heat from a furnace to the house through ducts is by the process of _________________.

Thermal-electric solar power stations typically experience fluctuations in available sunlight throughout the day, but can use ______________________ to smooth out electrical power levels to their customers.