{"type":"multi-choice","id":"72266","dataJson":{"key":0,"prompt":"A sheep magnet is used by farmers to help prevent illnesses in sheep.","options":[{"key":"0.7639445957344156","label":"True","value":"True"},{"key":"0.49539695028055164","label":"False","value":"False"}],"limitChoices":{"max":1,"min":1},"validResponse":["False"]}}

{"type":"multi-choice","id":"72267","dataJson":{"key":4,"prompt":"Cow magnets are used to are used to remove sharp metal objects out of a cow's stomach (something they have eaten accidentally).","options":[{"key":"0.29898006747600137","label":"True","value":"True"},{"key":"0.6703198378329448","label":"False","value":"False"}],"limitChoices":{"max":1,"min":1},"validResponse":["True"]}}

{"type":"multi-choice","id":"72268","dataJson":{"key":11,"prompt":"What does this picture show?","options":[{"key":"0.9920777237994797","label":"the magnetic field around a bar magnet","value":"the magnetic field around a bar magnet"},{"key":"0.7153872875837327","label":"the magnetic field around a horseshoe magnet","value":"the magnetic field around a horseshoe magnet"},{"key":"0.13064260065087152","label":"the magnetic field around a disc magnet","value":"the magnetic field around a disc magnet"}],"limitChoices":{"max":1,"min":1},"validResponse":["the magnetic field around a bar magnet"]}}

{"type":"multi-choice","id":"72269","dataJson":{"key":13,"prompt":"Where are the magnetic forces strongest on a bar magnet?","options":[{"key":"0.47187778682535886","label":"at both ends","value":"at both ends"},{"key":"0.042155221807954724","label":"in the middle","value":"in the middle"},{"key":"0.37398364453888766","label":"the forces are the same strength throughout the magnet","value":"the forces are the same strength throughout the magnet"}],"limitChoices":{"max":1,"min":1},"validResponse":["at both ends"]}}

{"type":"multi-choice","id":"72270","dataJson":{"key":14,"prompt":"What are the poles called on a magnet?","options":[{"key":"0.7831310412471688","label":"south and east","value":"south and east"},{"key":"0.544014888520931","label":"east and west","value":"east and west"},{"key":"0.5807691428868631","label":"north and west","value":"north and west"},{"key":"0.742156568640256","label":"north and south","value":"north and south"}],"limitChoices":{"max":1,"min":1},"validResponse":["north and south"]}}

Answer incorrect

Look at the slide below to work out the answer.