1. Why Is liquid more difficult to compress then gas?2. Suppose you used a needle to poke two holes in a sealed tube of toothpaste. One hole is near the cap and one hold is near the middle of the tube. You then squeeze the tube at the base. Compare how the toothpaste will leave each needle hole. Explain.3. Suppose that the oil in a hydraulic hoist is replaced by air. Would the hoist still operate as well? Explain.4. How does the particle theory help to explain how a hand bicycle pump and tire valve operate?BEST ANSWER for sure!!!
in the past than you are worried too much roughly what universities have faith, i might verify that A C at technological awareness GCSE would be basically proper sufficient for what you want to do at a point. My (state, non selective) 6th kind, demands no less than AB at technological awareness/extra technological awareness in case you want to take any technological awareness a point and BB for PE. verify with anyplace you're thinking of going for 6th form to look if this C would desire to evade you on your A degree alternatives. As for faculty, it relies upon plenty what you're contemplating analyzing and the place and you have not given us any concept. There are 2 or 3 opportunities a 300 and sixty 5 days to re-sit down technological awareness papers, so which you does not have have been given to do it in the middle of the remainder of your GCSEs. it would desire to be worth on condition that re-taking a paper to get you as much as a B. How a protracted way off the B have been you?
In liquids, the particles are already close together, so liquids can't be compressed any more. In gases, there are big spaces between the particles, so compressing a gas just squeezes the gas particles closer together. The pressure would be a bit higher in the middle of the tube, so the toothpaste would leave that hole more quickly. o push toothpaste out of the hole near the cap takes more energy, because toothpaste is quite viscous. It'll be different if the top is left off, but I'mm assuming the cap is screwed on. If you took the non-compreesible hydraulic oil out, and replaced it with squashy air, the hoist wouldn't work. Even a bubbles of air will spoil the operation of the hoist. The particles in the piston of the pump get squeezed closer together, which increases the pressure, and allows some particles to squeeze past the valve. The lower pressure on the other side of the valve allows the valve to open, but as soon as you pull the piston in the other direction, low pressure is on the pump side of the valve. Now, higher pressure squeezes the valve shut. It's much easier to explain with a couple of diagrams. The link below gives some clear explanations, although not exactly the answers to your questions
