Unit Test Answers

Which statements describe a situation in which work is being done? Select three options.A mover carries a box up a flight of stairs.A mover holds a box with an upward force while moving it horizontally.Wind blows against a steel table anchored to the ground.Wind blows a pool chair across the yard.A weightlifter lifts a barbell off the ground.A weightlifter holds a barbell above the head.

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Read each scenario below. Then select the answer choices that complete the sentences. A car engine has power than a horse because a car engine does the same amount of work in time. Yasmin and Raj each had 10 boxes of equal weight to stack next to each other on the same shelf, at the same height and in the same arrangement. Yasmin completed the task in 2 minutes, while Raj took 3 minutes to stack his boxes. Raj applied power than Yasmin because his stacking took time to do the same amount of work.

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