Activity #1
Instruction :
 lift a bundle of books tied with the spring balance/Newton meter vertically
upward.
 measure the weight of bundle by noting the reading of spring balance.
 make an inclined plane by using a stack of books and wooden plate. Tie a
bundle of books with one end of the thread. Attach the other end of the thread
with a spring balance and pull the bundle along the inclined plane.
 Note the reading of the spring balance.
 Which reading is smaller?
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 Why the reading is less in the second case?
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 Which will be easier; moving the books using the inclined plane or moving
them by lifting straight up and why?
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 Give different examples of inclined plane?
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Simple Machines
Directions: Label each picture as the correct type of simple machine.
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