Question

Blake is using a screw to hang on a picture in his room. Which of the these is the best description of a screw?

A. A screw allows you to use less force because a screw acts like a pulley.

B. A screw allows you to use less force because a screw acts like an inclined plane.

C. A screw allows you to do less work because a screw acts like a pulley.

D. A screw allows you to do less work because a screw acts like an inclined plane.

Answer 1

Answer: The answer is B! <3

Step-by-step explanation:

When Blake puts a screw into his wall, it is a good description of an inclined plane. The threads of a screw act like an inclined plane to increase the distance over which you exert the input force. As the threads of the screw turn, they exert an output force on the wood, pulling the screw into the wood. So the answer is B. I hope this helped! :)

Answer 2

When using a screw to hang a picture, it is important to understand its function. The best description of a screw is option B - "A screw allows you to use less force because a screw acts like an inclined plane."

Screws are simple machines that have an inclined plane wrapped around a cylinder. This inclined plane is known as the thread. As the screw is turned, the thread pulls the screw into the material it is being screwed into, allowing it to hold on tightly.

Because of this design, screws are able to reduce the amount of force needed to hold an object in place. This is because the force applied to the screw is spread out over a larger area, making it easier to turn the screw and insert it into the material.

In conclusion, when using a screw to hang a picture or any other object, remember that it is an inclined plane wrapped around a cylinder, designed to reduce the amount of force needed to hold an object in place.