Simple Machines

How do simple machines make work easier according to the text?

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Citing textual evidence

How many types of simple machines are there?

• Four

• Six

• Eight

• Ten

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Comprehending a text

Why is understanding how simple machines work essential in engineering and design?

• To make complex machines simpler

• To impress others with knowledge

• To avoid using machines altogether

• To improve efficiency and effectiveness in designing and building machines

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Comprehending a text

How does a lever function as a simple machine?

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Citing textual evidence

How do simple machines make work easier?

• By multiplying force

• By changing the direction of force

• By decreasing force

• By increasing friction

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Comprehending a text