Final answer:
The three types of noise that can block communication are external, physiological, and psychological. Noise-canceling headphones differ from standard headphones by using destructive interference to reduce external noise, whereas standard headphones only provide a physical barrier to block sound.
Step-by-step explanation:
The three types of noise that can block communication are external, physiological, and psychological. External noise refers to physical sounds from the environment that interfere with communication. Physiological noise includes biological influences on communication, such as hearing problems or fatigue. Psychological noise involves mental factors that can distract a person from communicating effectively, such as preoccupations or emotional states.
Noise-canceling headphones are different from standard headphones because they use destructive interference to reduce the loudness of outside sounds. Standard headphones provide a physical barrier to sound waves, while noise-canceling headphones create additional sound waves that cancel out the unwanted noise. Sound waves are a type of mechanical wave, which requires a medium like air or water to travel, as opposed to electromagnetic waves which can travel through the vacuum of space.