Activity 1. True or False
Direction: Determine if the following statements are true or false.
________________ 1. A mechanical wave starts with a disturbance in matter.
________________ 2. Particles of matter actually travel along with a mechanical wave.
________________ 3. Transverse waves travel only through solid matter.
________________ 4. Earthquakes cause longitudinal waves.
________________ 5. In a surface wave, particles of the medium move only up and down.
________________ 6. Ocean waves crash on shore when the bottoms of the waves slow down
due to friction.
________________ 7. All waves transfer energy from one place to another.
________________ 8. All mechanical waves are either transverse or longitudinal waves.
________________ 9. Some waves do not require a medium.
________________ 10. A source of energy is needed to start a mechanical wave.
Direction: Determine if the following statements are true or false.
________________ 1. A mechanical wave starts with a disturbance in matter.
________________ 2. Particles of matter actually travel along with a mechanical wave.
________________ 3. Transverse waves travel only through solid matter.
________________ 4. Earthquakes cause longitudinal waves.
________________ 5. In a surface wave, particles of the medium move only up and down.
________________ 6. Ocean waves crash on shore when the bottoms of the waves slow down
due to friction.
________________ 7. All waves transfer energy from one place to another.
________________ 8. All mechanical waves are either transverse or longitudinal waves.
________________ 9. Some waves do not require a medium.
________________ 10. A source of energy is needed to start a mechanical wave.
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Answer:
1) True
2) False
3) True
4) True
5) True
6) True
7) True
8) True
9) False
10) True
Explanation:
1) A mechanical wave is a disturbance in matter that transfers energy through the matter.
2) The energy of a mechanical wave can travel only through matter. Particles of matter in the medium don't actually travel along with the wave.
3) Transverse waves can only travel through solids, while a longitudinal wave can travel through solids, liquids and gases.
4) An earthquake generates a series of seismic waves that travel through the interior or near the surface of the Earth. They're called longitudinal waves.
5) In a surface wave, particles of the medium move up and down as well as back and forth in an overall circular motion.
6) Ocean waves crash onshore when the bottoms of the waves slow down due to friction.
7) Waves can transfer energy over distance without moving matter the entire distance.
8) Mechanical waves can be both transverse and longitudinal, all electromagnetic waves are transverse.
9) An example is the Sound waves, it must have a medium (matter) in order to travel.
10) A source of energy is needed to disturb matter and start a mechanical wave.