Acceleration Lab

My claims were valid because if a force is a push or a pull, when an unbalanced force is applied to an object, the object will move in the direction of the stronger force, and if a force is a push or a pull, when a balanced force is applied to an object, the object will not move. Evidence that supports my first claim are that in task 3, when I put a larger sized person on the left, and a smaller sized person on the right at the same distance from the cart, the person on the left had more force, which resulted in the cart moving left. In task 4, I put a larger sized person on the right and a smaller sized person on the left at different placements from the cart, and the person on the right had more force, which resulted in the cart moving right.

Next, the independent variable was the sail car and shed car. The speed acceleration was the dependent variable. The constants marble distance of photogate the angel of the track.

In the first experiment, “ How does mass affect your game?” it shows that the data on “Ball- Mass 3” that the 10 pound bowling ball had the highest kinetic energy of 27(J), the greatest velocity (m/s) of 3.42, and in average it produced 4 bowling points. According to the data, on “ Ball- Mass 1” the 11 pound ball got an average velocity (m/s) of 3.14, the kinetic energy of 24 (J), and the average bowling points of 3. On the other hand, the evidence shows that the 12 pound bowling ball in “ Ball- Mass 2” has the velocity (m/s) of 3.12, the kinetic energy of 23 (J), and the average bowling points of 4 . Concluding that in my Game 1 the velocity of the masses of the bowling balls decreased when the bowling balls were heavier and that the kinetic energy was lower as the mass increased in the bowling balls.

At 1 second, the mousetrap car was traveling at a speed of 3.2m/s and as the mousetrap car moved down the track, at 5 seconds, the mousetrap car was traveling at a speed of only .98 m/s. The difference between the speed at 1 second (3.2 m/s) and 5 (.98 m/s) seconds was 2.22 m/s, the speed of the mousetrap car decreased 2.2 m/s as the car moved down the track. If I would’ve done this experiment at home, I would’ve improved it by letting one group go at a time because the noise from the other groups around the room interfered with our data once or twice. An experimental error that occurred during the lab was that once, the line on the graph increased at a smaller rate than the other trials. This was because we released the mousetrap car too early and because the car was father away from the motion detector at the start the motion detector picked up the car’s movement from 3 seconds to 5 seconds. Extension suggestions I have for a new experiment is, I would extend the trials so we would stop recording the positon the mousetrap car when the mousetrap would stay completely

In this experiment we focused on calculating the acceleration of a toy car that was racing down a ramp. We also created a velocity-vs.-time graph for our data points. Our variables for the lab were the distance between A and B (independent variable) as well as the velocity and the acceleration acting as our dependent variables. We had to answer the research question ,”Will a car’s velocity increase as it travels down a ramp?”. We also had to answer another research question, ”Will a car’s acceleration increase as it travels down a ramp”. My hypothesis for the first question is that the car’s velocity will increase as it travels down the ramp. My hypothesis for the second question is that the car’s acceleration

When constructing the mousetrap car, each team member had different ideas. The group considered each idea and included it into the construction of the car. Some team members wanted to test friction, by switching the wheels of the car. The group would test CD wheels and paper plate wheels. The group also wanted to test the axle gearing. The group wanted to test this to see if the speed would increase.The group also had tested the lever arm length, so the speed could be tested. The group tested different lengths, 5 inches and 10 inches. The group tested each of these

The racer moved, but not very far. Both runs resulted in distance of 1.45 meters traveled. So at least there was consistency. One problem was the friction between the axles and the cardboard. The axles would catch, sometimes, on little pieces of cardboard poking out from the box. This problem could be fixed by used wood, instead of cardboard as a frame or sanding the axles for a smoother finish, which would allow for them to rotate easier. Also by not adding an arm onto the mouse trap, the torque produced was minimal. So to increase the torque generated by the mousetrap an arm could have been mounted on the mousetrap which in turn would have caused the racer to travel

Air resistance acts to slow the projectile as it is traveling horizontally. This was never taken into consideration, aside from part five of the analysis section, but this was not used in the calculations and it could have changed the results a bit. Another source of error that was not accounted for was the force that was used to kick the ball, however this information would not be relevant to this experiment. Also, any spin or movement of the ball in the air could impact the results, too, but that is difficult to control. To improve this experiment, it could be conducted on level ground, so any divots or bumps on the ground do not throw off the data.

The scientific question of the project was, Does the size of a tire affect the bike’s speed? The hypothesis was , If the smaller tires were used, then the bike would go faster. The important procedures were: Make sure all equipment is ready. Test the standard wheel of 1 rotation or pedal a second to ride to the finish line. Test smaller and bigger wheels. Record data and have at least 3 trials. Record the data on a piece of paper and compare results to your hypothesis. The Independent variable is the size of the wheel on the bike. The Dependent variable is the standard wheel or tire on the bike. The control group was the bike’s speed and the standard wheel or tire. The Experimental group is the other tires or wheels being tested on the bike. The control variables were the rate of pedaling , the same bike model was used, and the same distance for

Also, we need to understand words like meniscus, parallax, the difference between accuracy and precision, the use of a metric system, the use of scientific notation, and etc. Furthermore, the purpose for doing this experiment is to understand why measurements is not precise and how to describe uncertainty and error. This is important because we’re going to face the same problem every time we do the same type of lab, and when the

1: Gather all the materials needed for the experiment (a meter tape, a ramp, 2 carts with wheels and without wheels, a rubbermat, 5-gram masses, tape, a triple beam balance, a calculator, and 2 other people to help you [Person 1 and Person 2]).

In this lab relating to the Law of Conservation of Mass, the mass changed because the gas was released from the chemical reaction. The Law of Conservation of Mass demonstrates that before and after the chemical reaction, the mass of reactants and the mass of products have to be the same.

The second equation used in the lab, vx= x/t, was able to represent the relationship between the velocity of x and the x direction. The farther the ball traveled in the x direction, the greater the velocity of x was. This is obvious due to the fact that time was a constant value of 0.44 s, so as the number multiplied to 0.44 s increased, so did the product (velocity of x).

Velocity = w * Velocity+ c1 * rand() * (pbest- pPosistion) + c2 * rand() * (gbest- pPosition)

Unfortunately, this experiment was not conducted in an ideal circumstance due to air resistance acting upon the marble during its flight. Air resistance acted more on the steel marble than on the plastic marble because of the different material both marbles are made of. This explains why the plastic marble traveled further than the steel marble under the same experimental setting. The air resistance acts on the opposite side of the marble’s travel which results in it slowing down the marble during flight. The plastic marble slowed down less however, which is why it was recorded to move faster than the steel marble although it was to have the same initial velocity. Overall, some of the initial hypotheses were supported, while some were not due to the circumstances the experiment was