Physics chapter 15 test multiple choice answers

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Heat energy is measured in units of

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

27° Celsius converted to Kelvin would equal?

300K

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

Change in temperature

If the temperature of a sample of water at 0°C is slightly increased, the volume of the water

Decreases

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

Different rates of expansion

A substance that cools down faster than others has a

High specific heat capacity

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

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

Kelvin scale

Temperature is most closely related to

Kinetic energy


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