machines [4] [screws] [comprehension quiz]

The screw is a mechanism that converts rotational [turning] motion to linear [straight] motion. The most common example is the wood screw. Another example is that of a corkscrew used to get the cork out of a bottle. A car jack helps lift the part weight of a car when you need to change a puncture. An example you might not think of is a tap, where the screw mechanism open and closes the water supply. An obvious one will be an electric drill using a bit to drill the hole. This one is found in numerous examples from fruits to jams. The metal nut and bolt is another great example of how the screw mechanism is used in industry. This is the screw pump mechanism used in many aspects of machinery. 1 This animation is amazing, showing a drone being used to change a light bulb.

Which of the screw examples below match the picture ? wood screw corkscrew car jack tap drill jam jar nut and bolt screw pump lightbulb Which of the screw examples below match the picture ? wood screw corkscrew car jack tap drill jam jar nut and bolt screw pump lightbulb Which of the screw examples below match the picture ? wood screw corkscrew car jack tap drill jam jar nut and bolt screw pump lightbulb

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