Heat And Temperature

Question 1

is a form of energy.

Answer 1

Heat

Question 2

is a measure of this molecular motion.

Answer 2

Temperature

Question 3

Heat is measured by the units of

Answer 3

calorie and joule (J).

Question 4

: The amount of energy needed to raise the temperature of 1 gram of water by 1 °C

Answer 4

Calorie

Question 5

1 calorie=

Answer 5

4.18 J

Question 6

= is defined as the amount of heat needed
to raise the temperature of 1 kg of water by 1 °C

Answer 6

Kilocalorie

Question 7

1 kcal =

Answer 7

1000cal.

Question 8

is also the unit used in rating food energy.

Answer 8

Kilocalorie

Question 9

To distinguish the unit from the smaller calorie, the food unit is always called —— with capital C (1 kcal = 1000 Cal) .

Answer 9

Calorie

Question 10

Unlike temperature, heat cannot be measured.

Answer 10

directly

Question 11

An increase in temperature indicates that heat is.

Answer 11

added

Question 12

A decrease in temperature indicates that heat is.

Answer 12

removed

Question 13

That is, the —— the change in temperature, the more heat is added or removed.

Answer 13

greater

Question 14

That is, the greater the change in temperature, the more heat is —- or —-.

Answer 14

added

removed

Question 15

Hence, the amount of heat that a substance absorbs or gives off depends on the —— of the substance and the change in its.

Answer 15

Mass
Temperature