GCSE Exam Questions with Complete Solutions

physics - ANSWER-the study of matter and energy Hypothesis - ANSWER-An educated guess bias - ANSWER-A particular preference or point of view that is personal, rather than scientific. economic issues of science - ANSWER-Our society may not be able to afford things which scientists recommend (Electric Cars) Social issues in science - ANSWER-Decisions based on scientific evidence which affect people (Banning alcohol) Environmental issues in science - ANSWER-Although fossil fuels are reliable, they can damage our planet Ethical Issues in science - ANSWER-Should we do things which are unjust? (Develop nuclear weapons) global warming - ANSWER-A gradual increase in average global temperature Why do experiments take place? - ANSWER-To determine whether or not a theory is correct What do you need for a fair test? - ANSWER-Everything the same except one thing which is changed Why do scientists use trial runs? - ANSWER-To find out what problems may come their way in the actual run hazard - ANSWER-danger electricity - ANSWER-A form of energy caused by the movement of electrons. What are characteristics of good data? - ANSWER-1) Reliable 2) Accurate 3) Precise anomoly - ANSWER-abnormality error - ANSWER-mistake