quiz on gravitrax looping
{“questions”:{“j1xbm”:{“id”:”j1xbm”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What is the main purpose of the loop in Gravitrax?”,”desc”:””,”hint”:””,”answers”:{“dqiv3”:{“id”:”dqiv3″,”image”:””,”imageId”:””,”title”:”A) To slow down the marble\r\n”},”wux2x”:{“id”:”wux2x”,”image”:””,”imageId”:””,”title”:”B) To make the marble go faster\r\n”},”wozme”:{“id”:”wozme”,”image”:””,”imageId”:””,”title”:”C) To change the direction of the marble\r\n”,”isCorrect”:”1″},”yz2o6″:{“id”:”yz2o6″,”image”:””,”imageId”:””,”title”:”D) To increase the height of the marble track”}}},”80t3c”:{“id”:”80t3c”,”mediaType”:”image”,”answerType”:”text”,”imageCredit”:””,”image”:””,”imageId”:””,”video”:””,”imagePlaceholder”:””,”imagePlaceholderId”:””,”title”:”What type of energy is primarily used to make a Gravitrax marble loop?”,”desc”:””,”hint”:””,”answers”:{“uu538”:{“id”:”uu538″,”image”:””,”imageId”:””,”title”:”A) Electrical energy\r\n”},”bqtso”:{“id”:”bqtso”,”image”:””,”imageId”:””,”title”:”B) Gravitational potential energy\r\n”,”isCorrect”:”1″},”cerg7″:{“id”:”cerg7″,”image”:””,”imageId”:””,”title”:”C) Chemical energy\r\n”},”w019r”:{“id”:”w019r”,”image”:””,”imageId”:””,”title”:”D)…
