Experiment
5
Elastic Collisions
5.1
Objectives
Measure the momentum and kinetic energy of two objects before and
after a one-dimensional collision.
Try to account for any change in KE in the nearly elastic collision.
Compare and contrast the results ob
EXPERIMENT 2
Reaction Time Objectives
to make a series of measurements of your reaction time to make a histogram, or distribution curve, of your measured reaction times to calculate the "average" or mean of these reaction measurements as a "be
Practical Lab 2
Rotational Motion
Moment of inertia
Objectives
to familiarize yourself with the concept of moment of inertia, I, which plays the
same role in the description of the rotation of a rigid body as mass plays in the
description of linear motion
Experiment
7
Rotational Motion: Moment of
Inertia
7.1
Objectives
Familiarize yourself with the concept of moment of inertia, I , which
plays the same role in the description of the rotation of a rigid body
as mass plays in the description of linear motio
PHY251 Summer 2013 Practical Laboratory 1
Acceleration of a Freely Falling Body
Objectives:
to investigate whether the velocity of a freely-falling body increases linearly with time
to calculate an acceleration of a freely falling body from a set of dat
Experiment
2
Reaction Time
2.1
Objectives
Make a series of measurements of your reaction time.
Use statistics to analyze your reaction time.
2.2
Introduction
Sometimes throughout life, we are given numbers which can carry meaning.
In science, we often t
Experiment
3
Analysis of a Freefalling Body
3.1
Objectives
Verify how the distance of a freely-falling body varies with time.
Investigate whether the velocity of a freely-falling body increases
linearly with time.
Calculate a value for g , the accelera
Experiment
4
Inelastic Collisions
4.1
Objectives
Measure the momentum and kinetic energy of two objects before and
after a perfectly inelastic one-dimensional collision.
Observe that the concept of conservation of momentum is independent of conservation
Experiment
1
Introduction to Computer Tools
and Uncertainties
1.1
Objectives
To become familiar with the computer programs and utilities that will
be used throughout the semester.
To become familiar with experimental uncertainties.
1.2
Introduction
Micr
Experiment
6
Heat Equivalent of Mechanical
Energy
6.1
Objectives
Observe the conversion of mechanical energy into heat.
Learn how to convert the units traditionally used to measure heat
(calories) into the units appropriate to mechanical energy (joules)
Drawing Free-Body Diagrams
Directions: Construct free-body diagrams for the following physical situations at the instant in time for which
they are described. As is always done in free-body diagrams, label the forces according to type and draw the
arrows
Calculating Net Forces - Examples
Interpret each drawing of forces on the box. Calculate and write the resulting net
force on the blank below the box (make sure to include the correct unit of
measure). On the next blank, write the word balanced or unbalan
https:/www.youtube.com/watch?v=l7W5pH0AKSI
Acceleration
Definition:
1. A measurement of how _ or _ changes.
2. There are 3 ways to recognize whether an acceleration is occurring.
a)
b)
c)
3. If driving in your car what does the acceleration cause you to d
Sight
Sound
Touch
SHOW ONE SAMPLE CALCULATION on how to find your RXN TIME
CONCLUSIONS
1.
2.
AVG
RXN time
RXN time
Identify three things that could increase your reaction time?
4.
Give three examples of how reaction time may be important in
sports or life
4. -_ _
\
Nome Secﬁon bate
CONCEPTUAL SCiERC
Accelerated Motion
Reaction Time
Purpose
To measure your personal reaction time.
Requhed Equipmentand Suppﬁes
dollar bill
centimeter ruler
—————-——‘—_—
Discussion
Reection time is the time interval betwee
Pre-lab Questions
1) What is the meaning of free fall?
2) On Earth, a freely falling object will fall at what rate?
3) Describe the motion of an object as it falls on Earth.
4) Acceleration is the rate at which what happens?
5) What are three ways that an
Mass
Weight
A measure of the amount of matter
something contains
A measurement of the pull of gravity on an object
Measure in kg
Varies with location
a measure of an objects interia
Measured using a scale
Would be less on the moon
Can be calculated by mul
Acceleration Experiences
Pre-lab - Get the Concept
1. Identify three ways in which an object can
accelerate.
2. Acceleration is the rate at which what happens?
3. Why does the unit of time enter twice in the unit of acceleration?
4. Lets say an object has
Experiment
10
Vibration Modes of a String:
Standing Waves
10.1
Objectives
Observe resonant vibration modes on a string, i.e. conditions for the
creation of standing wave patterns.
Determine how resonant frequencies are related to the number of nodes,
te
Experiment
8
The Pendulum
8.1
Objectives
Investigate the functional dependence of the period ( ) of a pendulum
on its length (L), the mass of its bob (m), and the starting angle (0 ).
The Greek letter tau ( ) is typically used to denote a time period or
Experiment
9
The Spring: Hookes Law and
Oscillations
9.1
Objectives
Investigate how a spring behaves when it is stretched under the inuence of an external force. To verify that this behavior is accurately
described by Hookes Law.
Measure the spring cons
EXPERIMENT 6a
Inelastic One-dimensional Collisions
Objectives
to measure the momentum and kinetic energy of two objects before and after a completely inelastic one-dimensional collision to observe that the concept of conservation of momentum is ind
EXPERIMENT 6b
Elastic One-dimensional Collisions
Objectives
to measure the momentum and kinetic energy of two objects before and after a one-dimensional collision to try to account for any change in KE in the nearly elastic collision compare and c
Appendix C
PHYSICS 251 & 252 Contents of a Lab Report
The Physics 251/252 Lab Report Checklist
This is a general list of items and sections which should be included in every lab report. Data and Spreadsheet: Write your name and your lab partner's na