Chapter 15 Temperature, Heat and Expansion

Heat energy is ensued in units of

Both calories and joules

As a piece of metal with a hole in it cools, the diameter of the hole

decreases

In order the melt ice add....

energy

When you touch a cold piece of ice with your finger, energy flows

from your finger to the ice

In most cases, which expands more for comparable changes in temperature?

gases

The moderate temperatures of islands throughout the world has much to do with water's

high specific heat capacity

Compared to a giant iceberg, a hot cup of coffee has

higher temperature, but less internal energy

Aluminum has a higher specific heat capacity than iron. This means that for equal masses of aluminum and iron, the metal that heats more quickly when the same amount of heat is applied is

iron

Temperature is most closely related to

kinetic energy

Celsius converted to Kelvin would equal?

300K

Does water expand or contract when it is cooled below room temp to 4C?

Contract

If the temperature of a sample of water is 0 degrees Celsius is slightly increased, the volume if water

Decreases

What occurs to the density of water when it is cooled below 4C to 0C?

Decreases

It is important that the two metals that make up a bimetallic strip have

Different rated of expansion

Does water expand or contract when water is cooled below 4C to 0C?

Expands

What occurs to the density of water when it is cooled below room temp to 4C?

Increases

A temperature difference of 20 Celsius degrees is also equal to a temperature difference of 20 on the

Kelvin Scale

A substance that cools down faster than others has a

Low specific heat capacity

The quantity of heat that a substance can transfer relates to its

all of the above