Question 1: Which of the following is a property of all waves?

Answer: They transfer energy

Question 2: What is the frequency of a wave?

Answer: The number of waves passing a point per second

Question 3: True or False: Sound waves can travel through a vacuum.

Answer: False

Question 4: True or False: Light waves are faster than sound waves.

Answer: True

Question 5: Define wavelength in terms of a wave's properties.

Answer: Wavelength is the distance between successive crests or troughs of a wave.

Question 6: Explain why waves do not transfer matter.

Answer: Waves transfer energy through a medium, causing particles to oscillate but not move permanently.

Question 7: Describe the difference between transverse and longitudinal waves.

Answer: In transverse waves, particle motion is perpendicular to wave direction, while in longitudinal waves, particle motion is parallel.

Question 8: Use the formula v = fλ to calculate the speed of a wave with frequency 10 Hz and wavelength 3 m.

Answer: 30 m/s

Question 9: Match the following terms to their definitions:

Answer: See full answer key

Question 10: Order the following steps in the process of wave reflection:

Answer: See full answer key

Question 11: Fill in the blank: The _______ of a wave determines its energy.

Answer: amplitude

Question 12: Discuss how waves are used in communication technology. Include examples and explain the science behind them.

Answer: Waves, such as radio waves, are used to transmit data wirelessly. They travel through space and can carry information over long distances. For example, mobile phones use radio waves to communicate with cell towers.