{
  "rubric": "Help the train move forward by typing the right answer to score, then click on the balloon and drop it on the correct wagon.",
  "attempts": "2",
  "Questions": [
    [
      "Q1 The force exerted by the muscles of our body is called  _________________ force",
      "muscular"
    ],
    [
      "Q2 The wheel rotates around the smaller circular object called _________________.",
      "axle"
    ],
    [
      "Q3 A _________________ looks like a nail with grooves cut into it.",
      "screw"
    ],
    ["Q4 The ability to do work is called _________________.", "energy"],
    [
      "Q5 _________________ is a push or a pull that makes a body move or stop moving.",
      "Force"
    ]
  ]
}