The Factors Affecting the Stopping Distance of a Margarine Tub
Aim:
To investigate the factors that affect the stopping distance of a
catapulted margarine tub. In this experiment, I will be concentrating
on the effect that varying the mass of the catapulted tub has on its
stopping distance (sd.).
Introduction:
Things that move eventually have to stop. However, where they stop
depends on several factors- their mass (the mass of the moving
object), the speed the moving object is going at, the friction between
the surfaces and the air (or water) resistance and movement around the
object. The stopping distance (or sd.) of an object is how far it
travels before stopping.
As an object moves forwards, it has kinetic energy (KE) pushing it.
However, as it moves, it also creates friction. This changes the KE
(kinetic energy) of the moving object into heat energy. This means
that there is less KE and more friction. The forces become unbalanced
as more and more of the KE is transformed into heat energy. The force
pushing the object forwards is then less than the force pushing it
back, so the tub stops moving. The larger the force of friction acting
on the object, the faster it loses speed.
The type of surface that the catapulted margarine tub (or any moving
object) is moving along also affects the amount of friction that acts
on the object. A very smooth surface - for example, a mirror- would
create much less friction than a very rough surface- for example,
sandpaper. This in its turn would also affect the sd. of the tub- for
a smooth surface, the stopping distance would have lengthened, and for
a rough surface, the sd. would be shortened.
If a margarine tub uses a stretched elastic band to catapult it
forwards, then the amount the elastic is pulled back determines how
far the object travels before stopping. When the elastic band is
pulled back then it has Elastic Potential Energy (EPE) which is
changed to kinetic energy (KE) when the band is released.
We ran into Newtons First Law, which claims that an object resists change in motion, as the marble rolled down the floor it didn’t stop until it was acted against by friction. As we moved on, Newtons Second Law came into play when we were creating our lever as we need a ball that would roll down with enough acceleration that it could knock down the objects. Newton’s second law claims, that F=MA. So, we choose a golf ball since it would have more mass than a rubber ball, but it would have less acceleration when the lever was started. This way, it would knock the upcoming objects. Newtons Third Law claims that every action yields an equal and opposite reaction. This is proven in our Rube Goldberg Machine when the small car was rolling down the tracks as the wheels pushes against the track making the track move backwards. The track provides an equal and opposite direction by pushing the wheels forward.
Explanation: The height of the ramp affects the speed and distance the ball rolls because the higher the ramp, the more gravitational potential energy the ball has, which is then transferred to kinetic energy. The length of the ramp affects the gradient, which affects the speed and distance the ball rolls. The surface of the ramp and marble cause friction, which affects the speed and distance the ball rolls. The weight and size of the marble affect the gravitational potential energy and the amount of friction, which affects the speed and distance the ball rolls.
In agreement with preliminary question 3, Figure 1 demonstrates that the force necessary to keep the block sliding is significantly less than the force that is necessary to initiate the slide.
A box and pan bending brake is used to bend sheet metal. Box and pan shapes can be formed with these bending brakes. These brakes are also referred to as a bending machines. A number of blocks are included in a clamping bar of a box and pan brake. The removal and rearrangement of these blocks, allow bending of pieces of sheet metal. How are these brakes used? How do they operate? The following post will answer the questions and explain the operation or working of a box and pan bending brake.
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The novel The Disappearing Spoon was written by Sam Kean, Sam is an American author, professor, and philosopher who is best known for his exploration of questions regarding love, life, religion, and being a man in contemporary society.In his book, he talks about the history, madness and love of the periodic table and their elements. The chapter that I am going to be reviewing today is chapter 12 of his novel. This particular chapter talks about political elements and about how the elements on the periodic table embody our frustrations and flaws in economics, psychology, arts and politics.
Prompt: Define Newton’s Third Law, give three effects of it, and create an experiment designed to explore one aspect of it.
However, it is obvious that the tennis ball was most affected by friction, as it has the greatest difference between the theory and data. This was also visually apparent during the experiment. It was observed that the tennis ball slowed down considerably more that the other two balls. This is because the outer surface of a tennis ball is made from a furry cloth material, which generates more friction that a smooth surface, like the other two balls. (Bowden, 1951, pg. 302; Tremaine and Weinberg, 1984)
Investigating the Effect of Drop Height on the Depth of Sand Aim: To investigate the depth of the sand depending on the height at which the ball is dropped from. Variables: Independent variable chosen: The height at which the ball is dropped Dependent variable chosen: The depth of the sand after removing the fallen ball from it. Constant variables and how they will be controlled: Variable How we will keep it constant Amount of sand We leave the sand in the bucket and make sure that none spills over. Type of sand Use the same one for each trials Ball Use the same ball for each trial, with the same size, volume, material and brand.
Projectile-throwing machines are found in three main categories: the catapult, the ballista, and the trebuchet (How Stuff Works). The catapult has a lever arm attached to a “bucket” that is usually pulled back by rope and the projectile is released when the rope is cut (How Stuff Works). The ballista is basically a giant crossbow and the trebuchet is similar to the catapult but is a weighted beam with a sling carrying the projectile (How Stuff Works). In this examination, we will mainly be discussing the design of the catapult and trebuchet.
Reese Witherspoon is a lovely actress whose performances touch the hearts of many. Known for roles such as Pleasantville, Legally Blonde, and Walk the Line, this actress’s work has reached the globe. There are a good number of things many people don’t know about her, and these are a few. Stay tuned for the next part of the article, which is coming soon!
In ten days you will be able to answer this important question and make a contribution to science!
In the experiment these materials were used in the following ways. A piece of Veneer wood was used as the surface to pull the object over. Placed on top of this was a rectangular wood block weighing 0.148-kg (1.45 N/ 9.80 m/s/s). A string was attached to the wood block and then a loop was made at the end of the string so a Newton scale could be attached to determine the force. The block was placed on the Veneer and drug for about 0.6 m at a constant speed to determine the force needed to pull the block at a constant speed. The force was read off of the Newton scale, this was difficult because the scale was in motion pulling the object. To increase the mass weights were placed on the top of the ...
Cookie dough ice cream cookie pieces mixed with ice cream The best ice cream is cookie dough ,cookie dough is one of the best ice cream because of its favors. Cookie dough originated at the Ben & Jerry's Burlington Scoop Shop.