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Explain the scientific method essay
A paragrph on scientific method
Briefly describe what you know about the process called the scientific method and how it is used
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The purpose of Scientific Method Lab is to determine which variable mass or height will have the greatest impact on the speed of a sphere. The generalized purpose of this lab is to practice scientific method and to learn how to write lab procedures. Balance- It will be used to measure the masses of the marbles Marble Ramp- It will be what we use to roll down the marbles and do trials on Metric Ruler- It will be used to measure the height of the ramp Meter stick- It will be used to measure the distance of the ramp Stopwatch- It will be used to measure the time it takes the marble to travel down the ramp 3 Textbooks- It will be used to change the height of the ramp 4 Different sized Marbles- It will be used to roll down the ramp and to control …show more content…
This will give us the height of three textbooks which is what will be kept constant when we manipulate the marble mass. 3) Next, measure the mass of each marble with the balance. We need to know the mass so we can control the mass during our experiment. 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. 5) Take the average time of the trials for each marble. Next calculate the speed by dividing the distance of the ramp by the average time for each marble. This shows us how changing mass affects the speed of a sphere. 6) Now, we will manipulate the height and use only the largest marble out of the four marbles. To manipulate we will use textbooks. We will test three heights, one textbook which is about 3.5cm, two textbooks which is about 7.5cm, and three textbooks which is about 10.8cm. Do two trials for each height with the largest marble of the four marbles provided. Do not change the marble used. This will give us the time to calculate speed for each height. Procedures continue on next
Rolling a Car down a Ramp Investigation PLANNING When planning my experiment, I will need to take into consideration. the following points: -Fair testing -Equipment -How many results will I get? -What range of variables I will experiment with I will be investigating, by varying the height of the summit of the ramp. is raised off the ground, if the average speed increases or decreases.
Rate of Reaction Between Marble Chips and Hydrochloric Acid. The aim of this experiment is to find out how different variables affect the rate at which the reaction between Marble chips (CaCO ) and Hydrochloric acid (HCl) is used. There are many variables that affect the rate of this reaction such as the following. 1.
My prediction for Problem # 5 was how I felt that the acceleration of the cart would be equal but opposite to each other on the way up and down. As the cart is going uphill it would have a negative acceleration (see notebook for rough sketch of graph) because it’s slowing down and eventually going to return back to the bottom. As the cart is going down hill it is working with the acceleration making acceleration positive in a quantitative sense.
In the Balloon Car experiment, we made a toy car that was powered by a balloon. We filled a balloon with thirty pumps of air, and attached it on the car in a way so that the only way the air could be released is through a straw. We acquired three different types of straws that each had different sized holes, and observed the changes in speed that happened because of the difference in diameters. We recorded the data by measuring distances on the floor to make a track, and ran the cars along the track while timing how long it took. We found the average time the car with each type of straw took to go the distances of 25 centimeters, 50 centimeters, and 75 centimeters. In the experiment, the straw with the largest diameter made the car go the fastest, while the straw with the smallest diameter made the car go the slowest. Also, the car always sped up towards the end of the track, no matter what the size of the straw was. From the data, we learned that if an object can reach a faster speed quickly, it will go faster than an object with a constant acceleration.
Apparatus A ball – A marble A plastic rectangular tray – about 40cm by 25 Some sand – fills up to about 2/3 of the tray 2 Rulers – one for drop height (1m) - one for measuring the depth (15cm) Clamp and Stand 2 planks of wood – light wood/palsa (so that it doesn’t sink) Splinters – 10 cm long and 0.3mm wide Method:
Introduction: The purpose of this experiment was to find how changing the angle and velocity would affect the distance the object went, height the object went, and time the object was in the air. Before this lab I could not tell how the angle and velocity would change the results. I needed to figure out what angle and what velocity made the object go farther or make it stay in the air longer. I also found mass will affect the height and distance. I used the site Galileo and Einstein to figure out these factors. (Fowler, M)
Investigating the Factors that Affect the Acceleration of a Ball Bearing Down a Ramp I intend to investigate what factors affect the acceleration of a ball
I chose the topic of projectile motion because of my interest in calculus and its application and because it is a fascinating field of mathematics that is all about mapping change. I was amazed by its ability to calculate the speeds of traveling objects to reach a certain distance. I chose this topic as it was an opportunity to study the effects of gravity, and how it profoundly affects the motion of objects projected upward. I chose to study this in accordance with balls being catapulted into the air as this enables me to apply mathematical principles to calculate distance, velocity, acceleration and area.
You can use them on the playground or you can use them to play the books.
On the other hand, the computed values of the acceleration were also irregular. Acceleration at the distance of 10 cm and 40 cm were found to be equal. Acceleration would not change even if the group used a larger marble. It would make almost no difference in the values acquired.
For 4.1, the lab was to slide a certain amount of blocks of a different surface for four trials for each surface. There was a spring scale attached to a block and then, the directions were to pull it
The Matchbox Momentum lab helped us learn about the rules of momentum. Momentum is basically defined as mass times velocity, which is the weight of something multiply by how far something goes in a set time with a direction. When working through the lab there were “rules” or concepts you picked up when working through it. For example, when velocity increases momentum increases. Also, when mass increases momentum increases. In the lab, when looking at the double marble and double textbook trial and the single marble and double textbook trial you can see that the momentum is doubled when the mass was doubled. A piece of evidence, that shows when velocity increases mass increases, is when you look at the single marble and double textbook trial
The primary goal of this experiment was to allow students to experiment with gravitational forces, and friction to discover how a force on one object will affect another object. For this, a mass was attached to a string that sat on a pulley and pulled a cart or a block. To best explain to the students how each element was put into play, the experiment was broken down into three parts.
You have to remember that though marble is more powerful than just about all flooring choices, still is prone to warmth or extreme pressure or constant friction. Marble is really a porous element also it gathers
In order to play this game, the children will need 2 playing board, 1 nine sided dice, 8 avatars which are 4 cones and 4 coins, penalty cards, chance cards, 1 set of questions and answer sheets as well as 1 set of game manual.