1. Which of the following refers to the measure of the average kinetic energy of the particles in a sample of matter?
a. Heat
b. Heat transfer
c. Temperature
d. Thermometer
2. What will happen when heat is added and energy breaks the attraction between molecules of solid material?
a. It boils.
b. It melts.
c. It evaporates.
d. It condensates.
3. How does heat flows from one object to another?
a. Heat flows from one object to another through the movement of particles in solids.
b. Heat flows from one object to another by the movement of particles from hot region to cold region.
c. Heat flows from one object to another through close contact of the molecules of one object to another.
d. Heat flows from one object to another by rising of hot particles and sinking of cold particles in gases or liquids.
4. Which of the following activities shows conduction?
A. Flying a hot air balloon
B. Cooking a chicken soup
C. Turning on the aircon to cool the room
D. Walking barefoot in concrete or sand during summer
5. Why are handles of cooking utensils usually made from wood, plastic or rubber?
A. They absorb heat faster.
B. They are good insulators of heat.
C. They are good conductors of heat.
D. They have high thermal conductivity.