Temp Choice
When 4 grams of a substance loses 4 calories in cooling 1°C, its specific heat capacity using water as the unit of measure, is _____.
1
A change in temperature of 10°C is equal to a change of
10K
Which temperature scale labels the freezing point of water at 0 degrees?
Celsius
Heat is measured in _____.
all of the above
Temperature is related mostly to the _____.
average molecular kinetic energy in a substance
The energy content of a piece of food is normally determined by _____.
burning the food
A bimetallic strip will bend when heated because _____.
each metal expands at different rates
Heat is the _____.
energy transferred between objects because of a temperature difference
Some molecules are able to absorb large amounts of energy in the form of internal vibrations and rotations. Materials composed of such molecules would have _____.
high specific heat capacities
The largest extremes in temperature are usually experienced _____.
in the middle of a continent
When an iron ring is heated, the hole becomes _____.
larger
The fact that desert sand is very hot in the day and very cold at night is evidence that sand has a _____.
low specific heat capacity
Specific heat capacity is related to the amount of internal energy _____.
needed to change the temperature of one gram of a substance one degree
Internal energy is the _____.
total amount of energy contained in an object
Which has the higher specific heat capacity, water or sand?
water
Which releases the most energy, 100 grams of 100°C water cooling to 50°C, or 100 grams of iron at 100°C cooling to 50°C? (The specific heat of iron is 0.12 cal/g°C.)
water
The reason fish live from year to year in ponds that freeze over in the winter is that _____.
water below the ice is 4 degrees above freezing
The reason an ocean's temperature doesn't vary much from one season to the next is that _____.
water has a high specific heat capacity
Which, at the same temperature, will cool more slowly on a hot day?
watermelon
Consider a gap cut into a metal ring. If the ring is heated, the gap becomes _____.
wider