Work & Simple Machines II

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Which of the following simple machines is used to help the can-opener revolve around the top of the can while opening it?

Which of the following tools can be used to measure the force used to lift an object?

Which type of simple machine is a hammer?

Because it uses several simple machines to complete its task, the can opener can be referred to as what?

To puncture a can, a can-opener relies on a sharp wedge. The wedge is a variation of which simple machine?

If a load is too heavy to push up an inclined plane, which of the following reccommendations could you make to help?

Which is NOT an example of a complex machine?

Which of the following is NOT a simple machine that uses a pulley or pulley system?