Definition of perk. intransitive verb. 1a : to thrust up the head, stretch out the neck, or carry the body in a bold or insolent mannerb : to stick up or out jauntily. 2 : to gain in vigor or cheerfulness especially after a period of weakness or depression âusually used with up he's perked up noticeably.
Quick Answer. Light travels at a considerably higher speed than sound. Light travels at a constant speed of 186,000 miles per second, but the speed of sound is only 761.2 mph.
Nothing goes faster than light, which travels at a speed of 300.000 km/second, or 186.000 miles/second. Sound travels through our air at the speed of about 343 metres/ â¦ second, or 0,343 km/second, which is 1.125 feet/second, which is in its turn about 0,213 miles/second.