WOT
V. Read the sentences carefully. Choose the letter of the correct answer.
1. What is the direction of heat transfer
A. from hot to cold
C. from cold to hot
B. from bottom to top
D. from side to side
2. How is heat transferred in solid materials?
A. through convection
C. through conduction
B. through radiation
D. through vacuum
3. What happens to a liquid when heated?
A. it remains the same
C. it increases in temperature
B. it increases in volume
D. it increases its water level
4. What may happen to a solid when it is continuously exposed to heat?
A. it may become heavier
C. it may expand
B. it may decrease in volume
D. it may melt
5. When heat is transferred in gases, it is called
A. convection B. radiation C. conduction
D. roasting
6. How do the vibrations of the particles behave when sounds travel through solids?
A. Occurs fast
C. occurs moderately
B. Occurs very slowly
D. cannot be determined
7. How do sounds travel through air?
A. Very fast B. very slowly C. in jumping motion D. in random manner
8. In which medium can sound wave travel faster?
A. Solids
B. liquids
D. all of these
9. What affects the speed of sounds as it travels?
A. person receiving it
C. the origin of the sound
B. the nature of material
D. loudness of the sound
10. Which of the following produces a soft sound?
a. jet b. drum set c. whistle
d. buzzing bee
C. gases
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Answer:
1.A
2.C
3.C
4.D (When a solid is heated, the molecules that make up the solid begin to vibrate. This causes them to take up more space, and the solid matter expands. If the heat continues to build, it may provide enough energy for the particles to break free from their strong attraction to one another, causing the solid to melt.)
5.A
6.A
7.B
8.A
9.B. (Medium sound travels affects the rate or quality of sound)
10.D
Explanation:
By the way hope it help I've figured out immidietely this test questions are redundantly popping ap in its web site.Aside from that we also answered it in past grades.Hope it helps