Introduction to SAT II Physics

Circumference and radius are related by the formula C = 2πr, so if the circumference of the earth were halved, so would the radi ...

B Kepler’s Third Law tells us that T^2 /a^3 is a constant for every planet in a system. If we let xT be the value for the peri ...

learn how heat is transferred from one body to another, how temperature and heat are related, and how these concepts affect soli ...

in Kelvins are always positive. Absolute zero, 0 K, which is equivalent to –273ºC, is the lowest theoretical temperature a mater ...

heat, like rubber, have a high specific heat. Specific heat allows us to express the relationship between heat and temperature i ...

copper, bearing in mind that the final temperature of the gold must equal the final temperature of the copper: The equality betw ...

Just as specific heat tells us how much heat it takes to increase the temperature of a substance, the latent heat of transformat ...

your instrument—the length of the horn, and thus its pitch, varies with the room temperature. Household thermometers also work a ...

Conduction is the transfer of heat by intermolecular collisions. For example, when you boil water on a stove, you only heat the ...

interacting with any of the other molecules except in a collision. In a collision, molecules exert equal and opposite forces on ...

Effectively, this equation tells us that temperature, T, is directly proportional to volume, V, and pressure, P. In metric units ...

that deal with just these situations. Boyle’s Law Boyle’s Law deals with gases at a constant temperature. It tells us that an in ...

the way that it does. The Laws of Thermodynamics give us the whats and whys of heat flow. The laws of thermodynamics are a bit s ...

Some heat is added to a gas container that is topped by a movable piston. The piston is weighed down with a 2 kg mass. The pisto ...

There are a number of equivalent forms of the Second Law, each of which sounds quite different from the others. Questions about ...

is concerned, but we have included it for the sake of completeness. Heat Engines A heat engine is a machine that converts heat i ...

If we know our formulas, this problem is easy. The heat into the system is = 80 J, and the heat out of the system is = 20 J. The ...

Theoretical Limits on Heat Engine Efficiency Practice Questions .1 kg of cold water at 5ºC is added to a container of 5 kg of ...

.An ideal gas is enclosed in a sealed container. Upon heating, which property of the gas does not change? (A)Volume (B)Pressure ...

.A heat engine produces 100 J of heat, does 30 J of work, and emits 70 J into a cold reservoir. What is the efficiency of the h ...