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  • Related Benchmark: SC.6.P.13.3
  • Reporting Category: Physical Science
  • Type: MC: Multiple Choice
  • Difficulty: N/A
  • Question:
    The diagram below shows forces acting on a model airplane. Both its speed and height above the ground are constant.

    Which of the following conditions would cause the model airplane to descend toward the ground?
  • Answer Options:
    A. The lift is equal to the drag.
    B. The lift is less than the weight.
    C. The thrust is equal to the weight.
    D. The thrust is greater than the drag.
  • Answer Key:
    B