Surface Area, Resistance and Mass Experiment
Equipment
* 6 cup cake holders
* Metre Ruler
* Stop Watch
* Blue Tack
Method
======
We started by weighing a single cup cake holder, it being (0.2g.) We
dropped it from a distance of 1.84m from the ground. We then recorded
the time it took to fall. We then screwed it up and dropped it from
the same distance to see whether surface area had an effect on the
time.
After the first experiment we started investigating mass as well by
adding 0.2g of blue tack every time on 5 more cup cake holders,
repeating the screwed up and non screwed up procedure.
Fair Test
---------
This will be a fair test as it will be the same distance (1.84m) for
each occasion and will be in the same condition room with no more or
less wind. The Blue tack will be exactly 0.2g each time it is added
onto the previous weight.
Results
-------
Screwed Up Cup Cake Holder
Mass (g)
Time (s)
0.2
0.72
0.4
0.56
0.6
0.41
0.8
0.39
1.0
0.33
1.2
0.27
Non - Screwed Up Cup Cake Holder
Mass (g)
Time (s)
0.2
1.47
0.4
1.05
0.6
1.03
0.8
0.84
1.0
0.76
1.2
0.66
Conclusion
By carrying out this experiment I have learnt that surface area plays
a great part on an object being dropped from a distance, even if the
mass of the object is the same. The greater the surface area of the
object, the greater air resistance, this is because the more surface
there is, the greater the number of particles that the falling cupcake
We tested an apple being dropped from a constant distance of 2.4m above the ground, this was used as a representation of a person falling from a high distance. We also tested a blood-like substance being dropped from a medicine dropper from a constant distance of 1.5m above the ground, this was used as a representation of a simple nose bleed.
Test tube A will have a piece of potato which is this size. Test tube
Finally, the experiment conducted in this report clearly shows that when a ball is dropped from a
Buchner (as cited in Hain, 2012) defined fall as “unintentionally coming to rest on a lower area, such as the ground, or floor (p. 252). In the hospital setting, nurses look for non-modifiable an...
[ 8.1 ] Will the allele frequencies in the pens tend to move toward the frequency in the larger field population?
From the data table, we found that the more paper clips the faster it will fall taking average 2.10 seconds to reach the ground for the class when the whirligig had 4 paper clips on it. However, when the whirligig had only one paper clips it took an average of 2.4 seconds to fall to the ground for the class. This happened because the more something weighs, the greater relationship it has with gravity. The more weight something has the less air resistance can pull up on it and counter gravity but when less are used less gravity is pulling down on it making it float more. Which why fewer paper clips used on the whirligig the more time it takes to fall to the
Introduction: SI units and English units are a very important part of measuring around the world. English units, which are inches, is the most common unit of measure in America. SI units, which are centimeters, are most commonly used in Europe. These units can help us measure many things such as the length of a book or a piece of wood. In this lab, we had to determine the length of 10 lines in inches and in centimeters. We did this so we can find the slope of our measurements and to find the percent error. Percent error is a statistic that is used to determine how far an observed value deviates from the true value. The formula for percent error is the absolute value of the observed value (the value you get when conducting the experiment) minus the accepted value (which is the value that we already know) over the accepted value multiplied by 100. This lab also gives us a better understanding on how to measure using SI and English units and why they are important.
I also decided to use a wooden block to keep hold of the wire, because
It is obvious its fall, but what else is occurring? Gravity. Albert Einstein discovered gravity by watching ordinary objects fall. At that moment, he became a scientific unscrupulous observer. Works Cited for: Dillard, Annie.
Investigating the Effect the Thickness of a Wire has on Its Resistance. Equipment:.. Nickel Wire cut into 10 pieces of 30cm length (Ruler, Pliers). Two crocodile clips Five Pieces of Wire Power Source Variable Resistor Ammeter Volt Meter Method: The.. =
Factors Affecting the Resistance of a Wire The aim of this experiment is to investigate one factor that affect the resistance of a wire. I will do this by performing an experiment. First I will need to identify the factors that effect resistance. There are a few factors that affect the resistance, it is determined by the properties an object has.
The Relationship Between Length, Width and Resistance of a Wire Aim: To investigate how the length and width of a wire affects the resistance of the wires. What is the resistance to a s Electricity is conducted through a conductor, in this case wire, by means of free electrons. The number of free electrons depends on the material and more free electrons means a better conductor, i.e. gold has less resistance to the sand. For example, gold has more free electrons than. iron and, as a result, it is a better conductor.
· I will change the height and measure the drop of the ball from at
stories is greater than or equal to the time it takes for whoever knocked it off
This experiment could be improved doing the experiment on the same day as that would then make hundred percent a fair test. It could further be improved by using a height scale on a wall for more accuracy when reading the results along with this, the experiment could be extended by changing the height to measure whether the ball rebounds to similar height again.