Lab Report On Friction

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

In addition to , the data of the major finds in the experiment were the control speeds or no sail had an average speed of 138.3 sail had an average speed of 127.3.Sliding friction data average was -252.4. Rolling friction data had an average was –30.21.

I will start with the beginning, which is the ramp and marble. We used a marble that had more mass than the others. We did this to give the marble more potential energy. We set the marble at the top of the ramp, which gave it more potential energy as well, and released the marble. Once dropping it, it's previous potential energy transferred into kenetic energy. After this step came the metal lid. What this step showed was rolling friction and it also pushed it forward. How exactly? Well, when the marble landed, it bounced up, giving it elastic-type energy. It then fell, making it roll across the top of the lid the rest of the

Run a inelastic collision by pushing one cart with the velcro on it from the the edge of the ramp into the other cart in the center of the ramp and record velocity of lab-quest.

Objectives: To study projectile motion by investigating the flight of a kicked football and determining from what distance you can make a field goal. Procedure: Place the football on a kicking holder on one of the yard lines. Kick the football, aiming for the base, in hopes to the the optimum angle(42°). Using 2 timers, time how long it takes for the football to travel through the air until it hits the ground.

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]).

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

Make sure you measure the wood. You need to tape both sides but make sure it measure 6 feet. I doesn’t matter what object you roll down the ramp but it has to be cylinder. So it can roll. Stack the books and then put the wood on top make sure it’s slanted so the object can poll down it. You have to time when it gets to the tape. When you are about to roll your object make sure the object is on the tape. Also, just let go of the object don’t push the object. If you push the object down the ramp then it will be the wrong information. You have to test the experiment 10 times. So that you will get different results.

I utilized the coefficient of friction values based on skid testing conducted by the Institute of Police Technology and Management, (IPTM). IPTM testing, indicates a coefficient of friction of .90 - 1.50 for a vehicle furrowing.

Will different gloves with different amounts of friction have an affect on the amount of times a football is caught? If more friction is used, the amount of passes caught will increase, and the amount of passes dropped will decrease when the catch rate is the function of the gloves being used. The independent variable of this experiment is the amount of friction of different gloves. The dependent variable will be the amount of times the football is caught after being thrown. The experimental control will be using no gloves to add friction, and measuring the amount of passes caught.

To investigate the gravitational potential energy, kinetic energy, and mechanical energy of the cart as it goes down the ramp.

This lab was a about surface area and friction. How an object could be pulled along different surface areas and then their might be different outcomes. The labs will also explain surface area with frictional force. Some surfaces could be much rougher than others. Bar graphs were also made to compare the differences between the different forces.

Overall , we learned sliding surface and frictional force. Also when you slide the blocks over different surfaces. The force can stay the same, increase and or decrease the numbers. Took are measurement and meade two bargraphs, one was in lab 4.1 how the forces increase or decrease. In graph 2 4.2, you had to graph the averages of the overall forces. For example you will mark the depend and impend variable. Then graph the table top and the coarse sand paper 1 block 2 block 3 block and 4

The forces that are involve with the experiments are basically focused on the concurrent forces. The experiment also allows us to develop the condition of balancing or arranging the angles both sides on a force table. This laboratory experiment allows us to take the mathematical abstraction of a vector to make it tangible as possible. This experiment will look into two ways of

When two objects get in contact with each other the force between them forms. Scientists call this force the frictional resistance, or friction. It occurs because of the imperfections in the surfaces of objects, the molecules of both surfaces interfere with each other creating a natural force between two objects. The friction opposes direction of motion of the object and is parallel to the surface on which the action takes place. The force and magnitude that are necessary to overcome friction can be calculated. Area of objects that is involved in the contact is disregarded when calculating friction.