GED Science Practice Test 23
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Avg score: 33% Most missed: “In which direction is the unbalanced force acting as the elevator begins to acce…”

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Angela steps onto an elevator on the 40th floor of a New York City skyscraper. She stands on a scale that she brought with her to measure her weight. She then presses the button for the ground floor, and the elevator begins to accelerate downward until it reaches a constant speed of 6 m/s. Shortly before the elevator reaches the ground floor, it begins to decelerate; its speed is zero as it reaches the ground floor.    
 

GED Science Practice Test 23
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4 Questions

1. In which direction is the unbalanced force acting during the part of the trip where the elevator is traveling at 6 m/s?
2. If Angela usually weighs 750 N, what will the reading on the scale be during the part of the trip when the elevator is traveling down at 6 m/s?
3. As the elevator is accelerating downward, the reading of Angela’s weight according to the scale will be
4. In which direction is the unbalanced force acting as the elevator begins to accelerate downward?