Abraham Lincoln High School
Period 5
1/12/15
1/20/15
Partners: Nasya Aguilar LAB 1: Kinematic Equations and Reaction Time
PURPOSE/QUESTION
Apply kinematics equations for constant acceleration to find your reaction time. How much is it? How does reaction time change with practice? THEORETICAL
The reaction time is the amount of time required to sense astimulus, analyze its meaning, and respond. Acceleration is the rate of change of velocity. Velocity is speed with direction. Displacement is the moving of something from its place or position. Free fall acceleration is when there is no air resistance affecting an object.
equation for reaction time: t= 2Δx g constant acceleration equation:
Δx = v0 t+ 12 at 2
Velocity: …show more content…
The way the experiment was set up was by taking a piece of tape and drawing a line in the middle horizontally. Then, you align the ruler on the line at 50cm. After that is set up, your partner prepares themselves to catch the ruler at any time that you choose. You repeat this ten times and after calculate it on your data table. In order to calculate for the reaction time, you rearrange the kinematics equation for constant acceleration for time.
Procedures
← ruler cite: http://www.education.com/sciencefair/article/biology_oops/ Table: trial #
ruler reading
displacement (cm) displacement (m) reaction time t (s)
1
90.2
40.2
0.402
0.286
2
72.3
22.3
0.223
0.213
3
64.2
14.2
0.142
0.170
4