PHYSICAL SCIENCE SYLLABUS - V

A) 20 B) 5 C) 8 D) 15. 8. A machine is a device that. A) requires less work to do a given task. B) decreases the amount of work done by a given force. C) increases energy. D) can multiply and change the direction of an input force. 9. A first-class lever has the. A) fulcrum at one end and the output force between the fulcrum and the input force. ................
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