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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.

45. Matter has thermal energy.​​

Sagot :

Answer:

26. T

27. F

28. T

29. F

30. T

31. T

32. F

33. T

34. T

35. T

36. F

37. T

38. T

39. T

40.F

41. T

42. T

43. T

44. F

45. T

Explanation:

26. Light waves are transverse while sound waves are longitudinal. Although they are both waves, they still have differences from each other.

27. Transverse waves are always characterized by particle motion being perpendicular to wave motion. A longitudinal wave is a wave in which particles of the medium move in a direction parallel to the direction that the wave moves.

28. The most common transverse and longitudinal waves are light waves and sound waves, respectively.

29. Electromagnetic waves differ from mechanical waves in that they do not require a medium to propagate.

30. Mechanical waves travel through solids, liquids, and gases.

31. Sound is a Pressure Wave. Sound is a mechanical wave that results from the back and forth vibration of the particles of the medium through which the sound wave is moving.

32.  Light can be described (modeled) as an electromagnetic wave, and electromagnetic waves can travel not only through air and solid materials, but also through the vacuum of space.

33. Light travels at approximately 300,000 kilometers per second in a vacuum, which has a refractive index of 1.0, but it slows down to 225,000 kilometers per second in water.

34. Light travels in straight lines primarily due to the fact that light is a wave.  

35. When light strikes translucent materials, only some of the light passes through them. The light does not pass directly through the materials.

36. Opaque objects do not allow light to pass through them.

37. The eardrum vibrates from the incoming sound waves and sends these vibrations to three tiny bones in the middle ear.

38. This is likely due to the greater hearing loss at baseline in higher frequencies for older adults.

39.This is likely due to the greater hearing loss at baseline in higher frequencies for older adults.

40. Sound is a type of energy made by vibrations. When an object vibrates, it causes movement in surrounding air molecules.

41. We can't surf if there are no waves.

42. We use meters to measure the wavelength.

43. JUST YES

44. Sound waves in air (and any fluid medium) are longitudinal waves because particles of the medium through which the sound is transported vibrate parallel to the direction that the sound wave moves.

45. All matter has thermal energy, even matter that feels cold.

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