Post category:Everyday Science Mcqs Post comments:0 Comments The number of oscillations per second is called the_____. A. hertz B. waves C. pitch D. frequency Read more articles Previous PostThe first chemical explosive, Gunpowder, is a mixture of_____. Next PostSound waves from a loudspeaker are caused by_____. You Might Also Like The temperature at which motion of the molecules ceases is/are April 27, 2022 Which from the following is NOT a method of heat transfer? March 10, 2022 What is Dry Ice? March 10, 2022 A device which converts chemical energy into electrical energy is called: May 23, 2021 The SI unit of “pressure” is: May 23, 2021 For proper formation of teeth, __________ is essential. June 19, 2022 Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment. Δ