# Lab report - Emily Freiman Mr Ouimet Physics 27 September...

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Emily Freiman Mr. Ouimet Physics 27, September 2017 Acceleration Purpose: The purpose of this lab was to see what acceleration looks like on spark tape, a time vs. total distance graph, and a time vs. velocity graph. Also, we wanted to prove that the acceleration due to gravity was 9.81 m/s^2 near the surface of the earth. Procedure: We started with the toy car, the timer, the spark tape, and the ramp. We put a textbook underneath the start of the ramp to create an incline. We put the spark tape, shiny side up, into the timer and set it to 10 Hz. We attached the end of the spark tape to the toy car and set it on the ramp. We turned on the timer and let go of the car to let it roll down the ramp. We then calculated our measurements. For the free fall, we started with the ring stand, the clamp, the timer, the spark tape, and a water bottle. We put the spark tape through the timer, shiny side up, and attached

Unformatted text preview: the end of the tape to the top of the water bottle. We then attached the timer to the top of the ring stand using the clamp. We set the timer to 60 Hz and faced the clamp vertical to the floor. We then turned on the timer and dropped the water bottle until it hit the floor, and took our measurements. Data/Analysis: Look at the charts and graphs I included. Conclusion: On spark tape, the dots get farther apart to show accelerated motion. A positive acceleration is when the velocity increases and a negative acceleration is when the velocity decreases. The acceleration due to gravity should be 9.81 m/s^2, but I got 9.0 m/s^2, which shows an 8.3% error. Some sources of error could be my measurements between the dots on the spark tape or my plotted points on the graph....
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