Title Page: Friction Lab. Satwinder Singh. 3/27/17. Physics

Students in an AP Physics lab perform an electrostatics experiment involving two charged spheres suspended

Using body mechanics is very when you are lifting heavy objects. Body mechanics are exercises designed to improve posture, coordination, and stamina. But if you are not doing body mechanics correctly and efficiently, you will strain your back and other muscles. Using proper body mechanics will reduce injuries, and save energy for you for more important tasks. For proper body mechanics you must balance your feet, use your strongest muscles to do the job, and carry heavy objects close to your body.

The purpose of this lab was to test the relationship between velocity, position and time. As well as identify how accelerations affects an object's velocity and time. In this experiment, we will collect data on velocity, speed, and time. We used the equation Y=mx+b, in order to compare the velocity of each trial by comparing the slope and the y-intercept. If the slope was steeper on the graph, this meant that the cart had an increase in velocity. If the cart maintains at a constant speed, then the cart will have an increase in acceleration. In class we learned about the principles of acceleration, time, and velocity. Acceleration is an object’s increase in velocity. Velocity is how

The lab five B was about friction and how its always present. The purpose of this lab wat to explore how friction affect motion. There are three types of friction we discuss like air, rolling, and siding.

On a two-hour bus ride to a small, rural town in New Zealand with my school, we passed by numerous beautiful rolling hills and forests. While my classmates chatted, listened to music, and watched the landscape, I kept my eyes focused downward on my AP Physics binder. It was the summer before senior year, and instead of fully enjoying the month-long community service trip to a foreign country, I also focused on self-studying AP Physics 1 and 2. Because my school requires a prerequisite physics class before enrolling in AP Physics C, I had to learn an entire year’s worth of material over the summer. At the end of my Junior year when I was contemplating taking the harder physics class, one of the physics teachers told me, “No one has jumped straight into Physics C in many years, but I think you can do it.”

Light passed through a transmission grating is often sent in all directions due to interference. The grating acts as a new wave source and causes the light to travel in different paths. Equation 1 below shows the relationship between path difference and light direction due to constructive interference. D represents the line spacing and sinƟ=a/c according to the drawing below.

( Engaging statement. Why is this investigation of Crumple Zone Physics relevant? General topic information)

Atomic mass of calcium is 40. The mass of 2.5 gram atoms of calcium is _______.

The coefficient of friction, or the μ, is a scalar value which is equivalent to the ratio of the force of friction (FF) between two surfaces to the normal force (FN) which pushes two surfaces together. Each set of surfaces has a different μ, as it depends on the particular materials. Basically, the μ increases as it becomes more difficult for objects to move against each other. When a large amount of force is required to move two surfaces against each other (and therefore a large amount of friction is produced), the μ will be much larger than when a small amount of force is required. For example, the μ of ice on a smooth metal would be very low, while the μ of rubber on rough wood would be much higher.

Hypothesis: If the stiffness of the spring increase, then the displacement of the bob from the equilibrium point will decrease proportionally, since as the spring getter stiffer, there is more tension that held the bob from the spring, which decrease the amount of distance that the bob travels from the equilibrium point. A stiffer spring also increase the natural frequency, so when we increase the stiffness of the spring, the period of oscillation is shorter, the amplitude is smaller and the speed max is smaller, which shows less displacement.

Overall, there were little to no complications for this experiment. There were modifications made to the first part of this lab, the student written portion. One change was the distances. In the original written procedure, see Attachment 02 of this report, the distances for all parts were noted as; next to the heat source, 5 inches away, and 10 inches away. After testing these measurements in the lab, the distances were alter to be next to, 2 inches away, and 5 inches away. This was done in order to produce more prominent temperature results. The distances for the 10 precision measurements were also modified. Originally the student was to take measurements for 80 seconds, starting at 2 inches away from the heat

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]).

Task Description:The world communicates by making extensive use of the electromagnetic spectrum. For the average person this is commonly accessed using radio waves. These radio waves may be over the AM or FM radio wave bands or the radio waves that transmit our television signals. Not only are people always within a ‘phone call of each other anywhere in the world they are also able to find out exactly where in the world they are by use of

The main objective of this lab was to measure the friction force it takes to start moving a weighted block across a table, and as it continued to move. This force was tested experimentally in three separate ways. The force was then solved graphically and mathematically through six different runs per method. TALK ABOUT RESULTS HERE.

Explanation: This all happens because of the formula, Force = Mass X Acceleration. So physically when extra mass is added, the force will increase (e.g. 20 N = 2/m^2 x 10 Kg > 10 N = 2/m^2 x 5 Kg)