The Effect of Weight on Distance Traveled
Aim
===
I am going to investigate how the weight of an object affects the
distance it can travel. I will use a margarine tub as my object to
carry out my investigation.
Knowledge
=========
From preliminary work and research on the Internet I have gained some
knowledge. This will help me carry out my experiment and understand
it.
Equations
---------
Work done (j) = force applied (N) x distance (m)
The previous equation also applies for Elastic Potential Energy.
Acceleration (m/s²) = force (N) mass (kg)
Forces
------
Friction = the force which resists movement between two surfaces that
are in contact.
Gravity = the force that pulls objects towards the Earth.
Air resistance = the force that acts in the opposite direction to the
motion when an object is moving through the air.
When an object is stationary or at a constant speed we know that the
forces acting on it are balanced. However, if an object changes
direction, shape or size or if it slows down or speeds up the forces
acting on it are unbalanced.
The bigger the force on an object the greater the work done.
Energy
Elastic Potential Energy = stored in an elastic object when work is
done on the object to change its shape.
Kinetic Energy = the energy an object has because of its movement. An
object has more kinetic energy the greater its mass and speed.
Prediction
==========
I predict that as the weight in the margarine tub is increased the
distance it will travel is decreased. I think that the elastic
potential energy will also decrease as the weight increases.
Diagram of apparatus
====================
Stool
Newton meter
Weights
Chalk
Margarine tub
Metre rule
Elastic band
Method
======
1. Set up the equipment as shown in the diagram on the floor.
In this experiment we positioned a marble ball on a wooden roller coaster positioned on a physics stand in the sixth hole. Throughout the experiment, we used an electronic timer to record the time of the marble where it passed through the light beam of its clamp. We positioned the clamp at a certain point on the roller coaster and measured the distance from the marble to the clamp; the height of the clamp; and finally the time the ball traveled through the clamp. After we recorded these different figures we calculated the speed of the marble from the given distance traveled and the time. We repeated the step 14 times, then proceeded to graph the speed and the height. Next, we took the measurements of position of the clamp, height, and speed and calculated the potential energy, the kinetic energy, and the total energy. Total energy calculated as mentioned before. Potential energy is taking the mass (m) which is 28.1g times gravity (g) which is 9.8 m/s2 times the height. Kinetic energy is one-half times the mass (m) times velocity (v2). Finally we graphed the calculated kinetic, potential, and total energies of this experiment.
Past studies have showed mixed evidence regarding the effects of load carriage on stride length. Some studies have observed a decrease while others noticed no change in average stride length. Past studies have also been inconsistent with the usage of hip straps that are meant to transfer weight onto the larger muscles groups of the legs, which might lower metabolic cost. Our experiment considers both flat and inclined surfaces when determining whether backpack loads and the usage of hip and chest straps affect a walker's step length and post-exercise heartrate. The degree of increase of the post-exercise heartrate from the resting heartrate was used as a measure for fatigue in the subjects. Sixteen college students underwent eight walking trials on a treadmill on which the speed and distance traveled was fixed. Our data indicates that load carriage decreases average step length when the walker is on an inclined surface, but not on a flat surface. In addition, we found that load carrying, regardless of whether hip and chest straps are used, results in a greater increase in heartrate, both on a flat and inclined surface. Hip and chest straps used with loads are found to result in a lower increase in heartrate on flat surfaces, indicating a possible metabolic benefit of its usage.
The population of Bridgeport, CT in 2013 was 146,425 people. 56% of those speak English and 28% of those speak Spanish. 45.16% are Caucasian while 30.44% are African American. The average income per capita is $19,854 compared to the state of Connecticut’s average $35.681. Bridgeport’s income per person is 44.4% less than those of the state of Connecticut as a whole. The average household income is $41,047, compared to the state of Connecticut’s $67, 887. Bridgeport’s average income is 39.5% less than that of Connecticut as a whole. Twenty percent of the population’s household income per year is between $10,000 and $25,000. While eighteen percent is between $25,000 and $40,000 per year. The poverty level is Bridgeport is 169.8% greater than the Connecticut average. The unemployment rate as of July 2013 was 12.2% and in overall Connecticut it was 8.4%. The average household size is 2.7 people and the percentage of family households is 63.6%. For people over the age of 25 the educational attainment was for a high graduate 29,924 or 34% and for a Bachelor’s Degree or higher education were 13,497 or 15%. The age distribution for 0-4 was 57,191 or 6% and the ages from 5-17 years old were 169,833 or 19%. The total town school enrollment was 21,023. Families that were receiving temporary assistance is 3,412 and the population receiving food stamps is 37,425. There is a relationship between the demographics of a community and obesity. In today’s society, eating healthy may come with a price tag. These statistics indicate that there is a lot of poverty in Bridgeport which can lead to parents having to spend money on cheap, unhealthy food choices. This in turn can lead to childhood obesity. In addition, a large percentage of the communities ...
Objective: After completing the experiment, we will be able to find the mass of objects using an inertial balance and compare them to accepted measures.
Investigation of the Relationship Between Mass of a Vehicle and Its Stopping Distance Problem The problem to be investigated is "how does the mass of a vehicle affect its stopping distance when brakes are applied?" This problem is related to the conservation of energy and will be investigated through a trolley going down a ramp. A simple trolley will be used to represent the vehicle and weights attached to the rear of the trolley via a pulley system will act as the brakes. Throughout the experiment energy will be transferred into many forms but no energy will be lost or gained. As the trolley is raised it gains potential energy, when released down the ramp this energy is converted to kinetic energy.
4) The mass will be the first variable we manipulate. We will use the three smaller marbles of the four provided marbles. Do two trials for each marble and stop the stopwatch when the marble hits the spring. This will give us the time to calculate speed later.
m= 10km2 x 1000m x 1000m = 107m2 107m2 x 15= 1.5 x 1.8m3 = 1.5 x 1011kg
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
The short story Weight begins off with the main character making a statement that she is being held back and is feeling heaviness take over her energy and body. She recounts that some days she feels as though she will not make it through the day. These thoughts she has reoccur as she sits across the table from a man by the name of Charles. She describes him as being rich and remarks that if he hadn’t had money neither of them would be sitting across from one another at this restaurant (179). The main character is trying to raise money for a shelter named Molly’s Place. It is named after a lawyer who was murdered by her own husband. The main character knows nothing about this man, she only knows he is wealthy and that she wants him to donate to the good cause. The evening progresses and they
The first thing my group did was confirm our method of taking data and who would be doing it as well as defining out independent and dependent variables. Since we would be directly controlling the net force we made that our independent variable which left the acceleration as our dependent variable because it was a factor that varying as a result of our net force. We weighed our cart with every single mass in it along with the string and the hook which turned out to be 1.97kg. We did not add anything else to our system after this to keep the mass of the whole system constant. Our setup was like this: a ramp was sitting on top of the table, parallel to it so it had no slant. On one end of the ramp, a pulley was attached. On the other side of the ramp, a motion sensor was set up so it faced directly down the path of the
I predict that the mass of the paper case will have a direct result on
Newton’s 2nd Law of Motion states that acceleration is directly proportional to net force when mass is constant. This experiment dealing with variable forces has as its objective the verification of this law. In this experiment this law is tested for verification in straight forward way. Through the use of a Force Sensor and an Accelerometer, data collection of observations and measurements that a force exerts on a small cart along with the cart’s accelerations are to be determined. The sensors’ measurements will be employed to give meaningful relationships between the net force on the cart, its mass, and its acceleration under these conditions. The resultant measurements revealed will verify and determine the force and acceleration relationship as stated by Newton.
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 ...
Sir Isaac Newton is the man well known for his discoveries around the term, Motion. He came up with three basic ideas, called Newton’s three laws of motion.
The movie “The Hundred Foot Journey” is a great representation of different cultures interacting as well as the different food habits. The movie is based on an Indian family who moves to Italy and wants to open an Indian restaurant across street from a famous Italian restaurant in the small town. The Kadam family wants to bring the Indian cuisine to a new culture and share some of their values. They have trouble expanding their culinary delights to the public because Marquerite the sous-chef doesn’t want any competition. Throughout the movie, secrets on certain dishes are shared and tricks to improve the certain style of food is greatly appreciated by both restaurant chefs.