This part of the experiment precedes much like the first part except that now we will only be
using one cart. We will push the cart and it will strike a wall, and recoil backwards.
9. Use one cart and place the Force sensor on it. Be
A. Initial Measurements
1. Measure the mass of each of the carts bare. Also measure the mass of the Force Sensor
(without the cord on the scale). The cart that will be closest to the Motion Sensor will have the
flag (the 3x5 card that
Determination of the Range of the Projectile
In the above figure, v
= initial velocity of the projectile, h = table height, R = range of projectile and t
= flight time.
9. If the errors in all the other variables are negligible compared to that in v0,
A. Initial Measurements
Measure the length of the pendulum from the pivot point to the center of the ball cavity.
Measure the mass of the pendulum.
Measure the mass of the projectile.
For the remainder of the experiment, cock the gun
Calculation of Trajectories using Conservation Laws
The laws of conservation of momentum and energy are two of the fundamental laws of physics.
We will investigate these laws by using a device called a ballistic pendulum. In the process, w
Making some judgment about the validity of the last statement in the Theory section is your goal.
You must make comparisons for values of Fspring and ac for five different values of the radius of
rotation and these radii should cover the entire
A. The Null Test
Now that we understand how to combine errors in order to report a 90% confidence interval for a
calculated value, we can proceed to investigate the procedure for comparing a measured value
with an accepted value, or two measured va
Measuring g Using Pasco (Picket Fence)
In part 1, you determined the acceleration due to gravity from Sparky. You will now determine
the acceleration due to gravity using the Pasco interface and what is called a picket fence. There
are subtle differences
Measuring g Using Sparky
We will study the motion of a freely falling body and, in particular, measure the acceleration due
to gravity. With the apparatus supplied, an object is allowed to fall freely and its positions at the
ends of successive time inter
Combining Experimental Errors
After measuring the length and width of the block last week, you were asked the following
question: "Since your measurements of the length and width are subject to random error, how
should you report the area of the block inc
A. Coin Toss
There are some measurements for which we are almost certain of the mean of a large number of
repetitions. For example, we expect that the average number of heads appearing in a large
number of tosses of ten unbiased coins should be 5 and that
Given the pervasiveness of random error, one of the tasks of the experimentalist is to estimate the
probability that someone who performs an apparently identical experiment will obtain a different
result (measuring the width of the table top mentio
Introduction to Terms
In the laboratory neither the measuring instrument nor the measuring procedure is ever perfect;
consequently, every experiment is subject to experimental error. A reported result which does not
include the experimental error is serio