... 2.9434 28.71 .4 .13750 3.924 28.54 .5 .17500 4.905 28.03 .6 .21250 5.886 27.70 .7 .25375 6.876 27.06 Slope= 26N/m % Error= 7.723% Standard Deviation = .4425 N/m Conservation of Energy (Falling) X1 X2 ΔPEg ΔPEs % of error .04 .462 2.0678 2.967 43.49 % .08 .431 1.7199 2.512 46.06 % .12 .392 1.3328 1.950 46.31 % .16 .351 .9359 1.367 46.06 % X1 X2 ... to find the spring constant. This was found through testing Hooke's law with hanging weights off of a spring, and measuring the distance the spring travels when it is released from a position other than the equilibrium point. Another purpose...

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• Approx Pages: 1
• Grade Level: High School

The Law of Conservation of Energy says that an object with a specific potential energy, when falling will convert that energy to kinetic energy. The purpose of this lab was to prove that this occurs. The apparatus used consisted of a rotating vertical shaft, and a centered horizontal crossbar atop the vertical shaft with wingnuts and masses. A mass hanger was attached to the string and ran over a seemingly frictionless pulley system. ... When the hanger was dropped, the shaft rotated, causing the horizontal cross bar to go into rotation about the vertical shaft. The linear kinetic energy from...

• Word Count: 781
• Approx Pages: 3
• Grade Level: High School

... velocity is the rate of change of angular displacement and can be described by the relationship: Thus we say that the relationship between frequency and angular velocity is defined as: =2 F = 2 T Conservation of energy The energy associated with motion is called kinetic energy. The kinetic energy [K.E = ½ mv ] depends on the mass of the object and its speed. A pendulum possesses this energy. The energy stored in a system by virtue of its position or configuration ... is called potential energy. A pendulum also possesses this type of energy. When you pull the pendulum to a certain heigh...

• Word Count: 5681
• Approx Pages: 23
• Grade Level: High School

... required to stop a 27 kg child travelling at 25 m/s? Momentum is equal to mass times velocity and impulse is equal to the change of momentum. Using the derived formula from the previous statement F * t = m * Vf - Vi we see that the force exerted ... force the smaller vehicle backwards and the smaller car will experience more force. This is due to the conservation of momentum. The Law of Conservation of Momentum states that in an isolated system the momentum before a collision is equal to the momentum after ... the collision, if we disregard friction. So in the example above we can see th...

• Word Count: 892
• Approx Pages: 4
• Grade Level: High School

... water leaving. Using the equation, mass flow rate out is equal to the change in mass over the change in time, we get that the change in time is 1.734seconds. Conservation of Momentum Assumptions: • Deceleration is constant. • Exit velocity is constant. • Neglect all drag. • No sloshing. • mo = 2.266 kg Using: First term: This term goes away because ... water, analyzed according to our assumptions. Adding drag as a consideration to the momentum equation gives us With the cylindrical shape of our craft a drag coefficient of .91 would be used for the L/d of 20. Energy Equation Us...

• Word Count: 983
• Approx Pages: 4
• Grade Level: High School