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What I Know Directions: Read carefully each question or situation then answer based on your experience in manipulating simple machines. Write the letter of your answer on a separate sheet of paper 1. Which of the following helps people do work which requires less effort? A device B. equipment C gears D. simple machines 2. During the flag ceremony, Karl is in charge of raising the flag. The simple machine Karl tises to raise the flag is called A lever B. pulley C. Inclined plane D. wedge Cindy uses a can opener to open the can of tomatoes. A can opener is an example 3. of a A lever B. pulley C. inclined plane D. wheel and ade 4. To close a bottle of jam, Trixie uses a lid cover. Which kind of simple machine lid cover? A. lever B. pulley C. Screw D.c wedge 5. Allan uses the ramp to help his sick friend on a wheelchair to move up the building. A ramp is an example of a/an A. inclined plane B. pulley D. wheel and axle
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