Question

the passage below describes a process of scientific inquiry. select the part of the passage that describes testing the hypothesis. one afternoon, nyra was sliding a heavy book across her desk, and she noticed that it slid less easily across her desk mat than across the wooden desktop. she wondered how a surfaces texture affects the way objects slide across it. nyra guessed that it would take less force to slide the book across her smooth tiled kitchen floor than to slide it across a rougher surface, like her desk mat or the living room carpet. nyra tied a spring scale to the book. she placed the book at the edge of her desk mat and pulled it using the spring scale, measuring the force it took to get the book to slide. she repeated this process twice. she then repeated the procedure on the tile floor and the carpet. finally, she calculated the average force needed to slide the book on each surface. she observed that it took the most force to slide it across carpet and the least force to slide it across tile. nyra concluded that the smoother the surface, the less force it takes to slide an object across it.

Explanation:

Myra's action of tying a spring - scale to the book, placing it on different surfaces (desk mat, tile floor, carpet) and pulling it to measure the force, repeating the process, and calculating the average force is the part where she tests her hypothesis that it takes less force to slide the book on a smoother surface.

Answer:

Myra tied a spring scale to the book. She placed the book at the edge of her desk mat and pulled it using the spring scale, measuring the force it took to get the book to slide. She repeated this process twice. She then repeated the procedure on the tile floor and the carpet. Finally, she calculated the average force needed to slide the book on each surface.