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When building a campfire why is it easier to set fire to a piece of paper than to a branch or twig?
The fibers in paper have more exposed surface area than the fibers in wood. (NovaNet)
How does surface area effect heat loss?
the larger the surface area you have, to more heat that you are going to lose.
Which has more surface area a rectangular prisms or rectangular pyramid?
For the same base dimensions (base area) and the same height, the rectangular prism has more surface area.
Is larger surface area break on a cycle wheel more effective than smaller surface area breaks?
Yes.
Does a cylinder or rectangle have more surface area?
rectangle
Why would a crumpled piece of paper hit the ground before a flat piece of paper?
Because a flat piece of paper has a larger surface area and therefore more wind resistance. But in a crumbled piece of paper the wind resistance is less.
How much faster does a crumpled paper fall than a flat sheet show a video?
Because there is less surface area on the crumbled piece of paper, there is less area upon which the force of friction (air resistance) may act. There is more surface area on the normal piece of paper, which allows friction to act over a greater area on the paper. More air resistance causes the flat piece to fall slower.
Why does a crumbled piece of paper have less air resistance?
A crumpled piece of paper has less air resistance because its irregular shape disrupts the flow of air around it, reducing the pressure difference between the front and back of the paper. This reduces the drag force acting on the paper, allowing it to fall more quickly than a flat sheet of paper.
Why does a flat piece of paper fall slower than a crumbled piece of paper?
A crumpled piece of paper has a larger surface area, which increases air resistance and slows down its fall. The increased air resistance counteracts the force of gravity acting on the paper, causing it to fall slower than a flat piece of paper, which has less air resistance due to its smaller surface area.
Will the crumbled paper folded paper or unfolded paper fall first?
The crumbled. It's more like a ball, unlike the 2D paper. And since you can't keep the paper completely folded, It might as well be in 2nd place.
Do two pieces of paper one crumpled the other not fall at the same rate and explain?
They do not. Since a crumbled and an uncrumbled paper has the same weight but not the same surface area they will have the same gravitational pull but the difference in surface area give them diffent air resistance. Air resistance is the force when the paper have to move the air molecules while falling. Since the unfolded paper have to move more molecules because of its bigger surface, it will move slower through the air since the papers have the same gravital pull and therefore the same amount of force moving them downward.
Why does the crumpled paper fall faster the ground than the uncrumpled paper?
A crumpled paper falls faster than an uncrumpled paper due to the increased air resistance and drag acting on the flat surface of the uncrumpled paper. The crumpled paper has a smaller surface area exposed to the air, which reduces air resistance, allowing it to fall faster.
Does crumpled paper burn faster than flat paper?
Yes, crumpled paper burns faster than flat paper because the crumpled paper has more surface area exposed to the flames, allowing for faster combustion. The increased surface area allows for better airflow and more efficient burning.
What does the piece of paper being crumbled have to do with how fast it falls?
When a paper is crumbled, the air resistance it experiences increases due to the irregular shape, causing it to fall more slowly than a flat piece of paper. The increased air resistance creates more drag, slowing down the crumpled paper's descent compared to when it's flat.
How does surface area affect diffusion rate?
Surface area directly affects the rate of diffusion by providing more area for molecules to interact; a larger surface area leads to faster diffusion rates because there are more opportunities for molecules to move across the membrane. With a greater surface area, more molecules can pass through the cell membrane at the same time, increasing the overall rate of diffusion.
A student has two identical sheets of paper He crumples one into a small ball and drops the sheet of paper and the ball of paper off a building at the same time which will reach the ground first?
Both the crumpled paper ball and the flat sheet of paper will reach the ground at the same time. The difference in air resistance between the two objects is negligible compared to the force of gravity acting on them, so they will fall at the same rate.
What happens when a paper is crumpled?
Crumpling a paper causes its fibers to bend and fold, disrupting its original structure. This can weaken the paper and make it more prone to tearing or wrinkling. Additionally, the surface area of the paper increases due to the crumpling, which can affect its appearance and texture.
