combined science test 0.0 / 5 ? ScienceAtomsPeriodic tableGCSEAQA Created by: EmmaCreated on: 02-11-22 13:07 what is a catalyst? a catalyst is something that speeds up the process of a chemical reaction 1 of 7 how did mendeleev order his periodic table? he ordered it by relative atomic mass and left space for undiscovered elements based of the properties of surrounding elements 2 of 7 what is a transgenic organism? an organism that has been modified to contain genetic material from another organism 3 of 7 what are analogue signals? a continuous wave of information e.g soundwaves 4 of 7 what are digital signals? digital signals represent data as a sequence of discrete values 5 of 7 what is an oscilloscope? an oscilloscope is a machine that can detect sound waves and graphically show them on screen 6 of 7 how do you calculate efficiency? useful energy transferred by the device/total energy supplied to the device or useful energy out/useful energy in 7 of 7
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