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TRUE OR FALSE. Write T if the statement is TRUE and F is the statement is FALSE. Write your answer on the space being provided. Strictly NO ERASURES.
26. Sound and light are the same waves but different to each other.
27. Transverse waves and longitudinal waves are types of waves according to the direction of the disturbance.
28. Light waves are also an example of a longitudinal waves.
29. Electromagnetic waves requires a medium or matter to propagate.
30.Mechanical waves need a medium or matter to travel through.
31. Sound is also described as a pressure wave.
32. Light can travel in empty space, which means that it cannot classified as an electromagnetic wave.
33 The light from the sun travels to Earth so fast at about 300 000 km/s just about seven minutes.
34. Light travels in a straight line.
35. Translucent materials such as tracing paper and many kinds of leaves allow only part of the light to pass through them.
36. An opaque materials totally allows the light to pass through.
37. The eardrum vibrates as the sound waves reaches it.
38. The sound range may change as we grow older.
39. The light coming from the sun can travel in outer space and reach the surface of the Earth without any medium.
40. Sound waves are produced by not vibrating the objects, causing a disturbance in the air or even the water molecules surrounding them.
41. Surfing is an activity made possible by waves.
42. The wavelength of the ocean or the sea are measured in meters.
43. Kilohertz, megahertz, and gigahertz are lower units of frequencies.
44. Sound is classified as a mechanical and longitudinal wave.
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