1.the method of heat transfer that requires their contact is known as a. conduction b. convection c. radiation d. isolation

2. convection as a method of heat transfer it flows in the following except a. gas b. liquid c. solid d .fluid



3.in high places like baguio why do some houses have living rooms heated by a. fireplace because the hot air in the room goes down and they will feel warm b. goes outside the house and people feel cold c. goes around inside the house and people feel cold d. goes up in the chimney yet people in the room feel warm

4.the greenhouse effect is a natural process by which heat from the sun is trapped in earth's surface and keeps the warm these phenomena shows a. conduction b. convection c. radiation d. isolation

5. substances that conduct electricity is called conductors while substances that do not conduct heat easily are called ____. a. conductor b. convector c. radiator d.
insulator

6.which of the following statements is true? a. conduction takes place only in solid b. conduction takes place in gases and liquids only c. conduction takes place in solid liquid and gas with the same rate of heat transfer d. conduction takes place in solid liquid and gas however rate of heat transfer very because of their molecular structure



7.the following are examples of convection process of heat transfer except a. drying of hair using hair blower b.refrigerator and air conditioning system c. heated water rises to put to replace the colder water which then thinks and vice versa d. wind systems in the different areas in the world causing some weather phenomenon

8.why is it important to use pot holders made of fabric or wooden ladle for steering or scooping hot food a. it prolongs the agony of feeling the heat when touching hot surfaces b. it lessens the conductivity rate of heat transfer so one want a field the sudden pain heat when touching hot utensils c. it depends the feeling of cooking again because it makes the cooking experience very interesting d. it is never needed a loved one must never use wooden ladders or potholders when in beijing on hot utensils

9.why are some houses have roof insulation or would have windows overhead because a.warm air rises and leaves the cool air at the bottom so people in the house may feel cool b. warm air goes down and leaves warm air at the bottoms of people in the house may feel warm c. cool air rises and leaves the warm air at the bottom two people in house may feel better d. cool air stays down together with the warm air at the bottom so people in the house may feel fresh

10.the following are insulators in except a. rubber b. plastics c. metal d. fabric

11.greenhouse effect is a natural phenomenon that keeps the earth warm which method heat transfer is shown in the phenomenon a. conduction b. conduction c. radiation d insulation

12. fast moving molecules have ___ thermal energy than slow moving molecules a. more b. letter c. smaller d. lower

13. the following are methods of heat transfer exact a. conduction b. insulation c. radiation d. convection

14.what human activities increases the amount of heat to the atmosphere except a. tree-planting b. burning plastic c. smoke from automobiles d. use other harmful gases

15.the following shows example of radiation as it is being transferred except a. sun heats up the earth b. cooking food on the burning stove c. grilling barbecue d. drying of clothes outside

Paki answer po needed ko na po kasi talaga salamat po talaga sa maga answer nito sorry kung nakaabala ako pero pwede Pakisagot po pls​