education

1. Interactive
Quiz

2. HEAT

3. 1. What is the direction of
heat transfer?
a. from hot to cold
b. from bottom to top
c. from cold to hot
d. from side to side

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5. Awesome!
You are correct

6. 2. How is heat transferred in
solid materials?
a. through convection
b. through radiation
c. through conduction
d. through vacuum

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You are correct

9. 3. What happens to a liquid
when heated?
a. It remains the same.
b. It increases in volume.
c. It increases in temperature.
d. It increases its water level.

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You are correct

12. 4. What may happen to a solid when
it is continuously exposed to heat?
a. It may become heavier.
b. It may decrease in volume.
c. It may expand.
d. It may melt.

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14. Awesome!
You are correct

15. 5. When heat is transferred
through gases it is called…
a. convection
b. radiation
c. conduction
d. roasting

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You are correct

18. LIGHT

19. 1. Light travels in a straight
line when it passes
through a single medium.
TRUE FALSE

22. 2. The light that strikes a thick
cardboard bends and find
another way to pass through
it. false
TRUE FALSE

25. 3. Light rays could not be blocked
and they could pass through all
types of materials since they
travel on a straight line.
TRUE FALSE

28. 4. A laser is a narrow but
powerful beam of light
capable of travelling far
distances on a straight line.
TRUE FALSE

31. 5. Optical fibers are used in
communication, medicine
and industry.
TRUE FALSE

34. SOUND

35. 1.When the sound travels
through solids, the vibration
of the particles occurs
______?
a. fast
b. slowly
c. moderately
d. irregularly

36. Please try
again!

37. Awesome!
You are
correct!

38. 2.How do sound travels
through air?
a. very fast
b. very slowly
c. in jumping motion
d. fast in random manner

39. Please try
again!

40. Awesome!
You are
correct!

41. 3.In which medium can
sound wave travel
faster?
a. solids
b. liquids
c. gases
d. All of these

42. Please try
again!

43. Awesome!
You are
correct!

44. 4.What affects the speed of
sound as it travels?
a. Person receiving it
b. The nature of material
c. The origin of the sound
d. Loudness of the sound

45. Please try
again!

46. Awesome!
You are
correct!

47. 5.Which of the following statements about
sound is correct?
a.Sound cannot travel through a solid
b. Sound travel faster in air than in liquids
c. Sound travel faster in solids than in air
d. The travel of sound is not affected by the
medium through which it travels.

48. Please try
again!

49. Awesome!
You are
correct!