Average Velocity And Ramps Lab

C. What happens to the speed as time goes by for the car on the downhill ramp?

To determine whether the height at which a marble is dropped affect the size of the crater.

rate of fall of an object was determined by its weight held that matter was constructed out

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

“Acceleration is a vital law of motion that is described as “the rate of change of velocity per unit of time; Rate of change means the ratio of the amount of change divided by how much time it took to change.” (The Physics Classroom, 2016). This law of motion will be tested and displayed by rolling a car down a ramp and recording the acceleration of the car is it descends the ramp. The speed/velocity of the car will gradually increase by the same amount every second. The steeper the slope (the bigger the angle of inclination of the ramp) that the car is rolling down, the faster the car will accelerate. This is because the amount of gravity experienced is dependent on the angle of the slope.

To answer this problem, first I needed to gather important information about what they told me in the document. The information I got was the height of the MCLC library balcony which was 417 inches and and the x and y data table which x represents the number of rubber bands they used and y the jumping distance the barbie reached for each of the rubber bands they used. My plan was to make a graph to find the slope of the line. Then with the slope, I needed to make an equation that best its the table and graph.

If the size of the marble was bigger, the shape would appear to be smaller and if the size of the marbles were smaller, the shape would appear to be bigger. This is because as the size of the marbles changes, so does the angles that they make, when they bounce off of the shape. This angle size depends on the speed and size of the marbles and when one of those variables are changed, it can make it difficult to determine the position and shape of the

The average time came out to be .603 seconds, and then the acceleration was found using the equation Vf-Vi/t. The acceleration for the 16.4 grams marble was 462.45 cm/s2. When a 28.3 grams marble was tested in the same way, the acceleration was 477.74 cm/s2. Finally, when a 67.4 grams marble was tested, the acceleration was 472.95 cm/s2. Since the acceleration of all 3 marbles were near each other by a 16 cm/s range, it can be concluded that the mass of a marble has no effect on the acceleration.

Slope determination is a valid way to calculate density because the slope of the data and the actual slope were close in value. When looking at the slope of the graph with the points, they were all relatively close. Three of the five point were even on the slope line. The formula of (y2-y1/x2-x1) allowed the finding of the slope of the line graphed and it also allowed the comparison to the actual slope of silver. This allowed the calculation of the percent error and also to see how effective slope determination really is. The slope of silver was 10.5g/cm³ and the slope of my findings was 10.15g/cm³. The percent error was low at 3.3% which points to slope determination

The purpose of the lab is to find a projectile’s horizontal velocity and make comparisons of the effects of different inclined planes with the projectile of a ball.

In this lab we tested the effect of the air friction on a free fall object using a stopwatch and photogate. One of the objective of the experiment was to get one of the free falling object acceleration to be close to 9.8 meter/second sq. The reason of that objective was to see if the theory of the acceleration of any object in free fall is downward on earth have the magnitude of about 9.8 meter/second sq. or not. To accomplish this we separated this experiment in two part.

Dependent: Distance, Velocity, Acceleration Constant: Acceleration, Weight, Length of Carbon Paper Hypothesis: If the time it takes for an object to fall increases, then the distance it takes for the object will exponentially increase, the speed will increase linearly, and the acceleration will remain constant without a slope, because the gravitational force of earth is 980cm/s/s

This study assesses how altering step rate has been shown to reduce joint loading forces. This could be a strategy that runners implement to help minimize patellofemoral pain. Runners were tested at 10% above and below their 100% step rate. Step rate increased to 10% above the preferred, which reduced the peak patellofemoral joint force by 14%. The peak stance-phase of knee flexion decreased when step rate was increased. This was the most important factor that predicted a reduction of joint loading forces at the knee.

In this experiment, we are measuring the difference in how far a projectile travels based on its angle. To use the mathematical model to find this, we must measure the initial velocity and the angle used to launch the projectile. The independent variables in this case are the initial velocities and the angles, while the dependent variable is the distance traveled by the projectile. Not shown above are the cables attaching the projectile launcher to a LabQuest device to allow the collection of data, which was then connected to a computer to show the data that was collected, and the hand pump which applies pressure to launch the projectile. The model is not to scale.

The equation h = d (h/L) was used to calculate the height of the cart on the ramp