Physics help! It seems like a lot but the questions are short (but Im not very g
ID: 1769788 • Letter: P
Question
Physics help! It seems like a lot but the questions are short (but Im not very good at physics)...You dont actually need to do the experiment to answer most of them so please help with the predictions. Figure 5.2: Mass Attached to a Spring Scale Next, your group should obtain a 20 Neuton Spring Scale, and tuo masses one with a massof weight is attached to it, its spring stretches and the scale displays the weight of the attached object. with a mass of 1000 grams. As background, a spring scale works in the same way that a regular scale does. When a 3. Take the 500 gram mass and the 1000 gram mass and weigh them on the spring scale. Because the spring scales may not be totally accurate, record the reading on the scale for both masses below. 4. Now that we have baseline values for the weights of our masses, we will first try to guess what will happen when we submerge them underwater. If we were to fully submerge each mass underwater while it was attached to the spring scale, would the reading on the spring scale be less than, equal to, or greater than the value when the mass was unsubmerged? Briefly explain your reasoning 5. Now take the 500 gram mass (Do not do the 1000 gram mass just yet) while it is attached to the spring scale and fully submerge the mass underwater. What is the reading on the spring scale? Was your guess correct? 128Explanation / Answer
4 &5)
When the object is submerged, the weight of the object reduces as read on the weighing scale. This is because of the buoyant force the object experiences. The buoyant force is equal to the weight of the water of the water displaced. Thus the weight on the weighing scale = actual weight of the object - weight of the water displaced.
6) The deeper you submerge the object, more is the water displaced byt he object, hence, more is the upward buoyant force experienced. Thus the reading on the scale will keep lowering
7 & 8) The weight of the 1000g block, when submerged inside water will be less than its actual weight. The indication of the weighing scale will prove this. But it will be greater than the weight shown for the 500gms block when completely submerged.