This quiz, titled 'Exam 4 PreAP Physics Numbers 1-5', assesses understanding of the scientific concept of work. It includes questions that differentiate between everyday and scientific uses of the term, focusing on scenarios involving physical forces and motion.
A. Holding a heavy box requires a lot of work.
B. A scientist works on an experiment in the laboratory.
C. Sam and Rachel pushed hard, but they could do no work on the car.
D. John learned that shoveling snow is hard work.
A. whenever a force acts on the object.
B. whenever a force is perpendicular to the displacement of the object.
C. whenever a force causes a displacement of the object.
D. whenever a net force acts on the object.
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A. Lifting a heavy bucket involves doing work on the bucket.
B. The force of friction usually does negative work.
C. Sam and Rachel worked hard pushing the car.
D. Work is a physical quantity.
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A. A weightlifter lifts a barbell.
B. A weightlifter holds a barbell overhead.
C. A weightlifter slowly lowers a barbell.
D. A weightlifter drops a barbell and the barbell falls to the ground.
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