ISMM1-UC 144 Lecture Notes - Gravitational Energy, Elastic Energy, Centripetal Force
Document Summary
P t = m x c x t. V i t = m x c x t. Q = m x lf or p t = m x lf. Q = m x lv or pt = m x lv. Thermal capacity = m x c or = q / t. Measuring time: instruments are the stop clock or stopwatch. Speed is the distance travelled in unit time. Start to point a- constant speed to find distance- find area under graph. A to b- uniform acceleration- to find acceleration find its slope or gradient. Then the body is at rest or not moving. Acceleration of free fall= any body falling under the effect of gravity alone will fall down at a constant and uniform acceleration is called acceleration of free fall. As a body falls from a particular height the air resistance opposing it increases as its speed increases, thus its accelerations falls.