What is the mechanical advantage of your arm?
, thus, the mechanical advantage of your arm is the force of the
. If an object is in rotational
muscle tendon divided by the force of the spring (
equilibrium, then the system is repr
171.103 Section Assignment 7
Work and Energy
1) A block is initially moving to the right on a level, frictionless surface. A hand exerts a constant
horizontal force on the block that causes the block to slow down (stage 1), turn around, then
speed up in t
171.103 Section Assignment 3
Vectors and Kinematics in 2D
You are helping to design a movie stunt where a car will jump across a chasm
between two cliffs of different heights. The car is driving along a horizontal road
when it goes over t
171.103 Section Solution 2
September 14, 2016
For each of these problems, one should follow these simple steps.
1. Draw a diagram to illustrate the process.
2. Set up coordinates and define variables.
(*This is really important, make you set define which
JHU Department of Physics
General Physics Lab: 173.112.06
This question supplement is mean to walk you through the derivation mentioned in Question 3.
Q3. derive the equation for the charge-to-mass ratio in terms of things you can control, or measure.
The "Resistor Color Code" indicates:
Use the Ohm-meter to measure the resistance of each resistor.
Are any of the resistors out of tolerance?
We only care that a resistor has some measur
Page 1 of 2
What Factors Affect a Paths Resistance?
You know from class that, depending on the size and shape of a resistor, the resistance will vary. Today, you are going to explore
the effect various factors have on the resistance
Page 1 of 3
Today, we are going to analyze the behavior of a simple AC circuit, the RC circuit. Our goal is to develop an intuition for how and
why circuit components behave differently when the voltage varies in time.
Page 1 of 4
Visualizing the Electric Field
Last week, we learned that there was something called charge, and discovered its properties. Today, we are going to explore the
nature of the electric field created by static charge distrib
Johns Hopkins University.
General Physics Lab
This document is a breakdown of the equipment used in this lab.
A multi-meter is an electrical measurement device with a vast array of uses and configurations.
Calculus: Power Law Derivatives
Note: f(x) means a function of x , g(x,y) means a function of x and y, e tc
Consider the following derivatives (x,y, and z are variables, all other symbols represent constants):
cfw_ = 0
(, ) =
Statistics: Propagation of Error
Note: f(x) means a function of x , f(x,y) means a function of x and y, e tc
Consider the following expression for propagation of error (x, y, and z are variables, all other symbols
The mechanical advantage of a lever is defined to be the ration of the output force to the input force:
The simple model for the bicep-arm system is to treat it as a class 3 lever.
What is the mechanical advantage of yo
AS.171.104 (Spring 2017): Section Problems for 3/28
Problem 1 (Exercise 33.3):
A 10-cm-long wire is pulled along a U-shaped conducting rail in a
perpendicular magnetic field. The total resistance of the wire and rail is
0.20 . Pulling the wire at a steady
1 53%;, L = L 4 J- 6 c
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For-m om 0*- Cmwf'cgina, L5H; of: cfw_v Q, _.
[El 3 '1 I: "fgl = 1 LB 5;.30'.
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171.103 Section Solution 1
Acceleration in one dimension
1) 1. Max velocity going up
2. Slows down due to gravity
3. Slows down even further due to gravity
4. Turning point: velocity is 0
5. Speeds up due to gravity
6. Speeds up even further due to gravit
171.103 Section Assignment 6
Conservation of Momentum
1) We conduct a series of experiments with two gliders on a level, frictionless track. In each
experiment, glider A moves to the right with some initial velocity, and glider B sits at rest.
171.103 Section Assignment 2
Numbers are given in the problems, but they are not to be used until you have an answer that
is purely written in symbols. You should start your problems by writing everything out as variables
and drawing a pictu
June 1, 2012
Lab 1: Craps! The Nature of Statistical Processes
Q1: On any given throw the probability of rolling a 1 or a 2 is 1/3 or (1/6)*2. Each
single number has a probability of 1/6 so combining 1 and 2 gives a probability of
This purpose of this experiment was to calibrate a cannon. The objective of the lab
was to figure out how shoot a ball from a cannon into a basket that was 1.1 meters away
from the shooter. In the lab, equations were derived to figure out th
Q1: Describe your design. How does your design answer the experimental question?
What were you able to measure, and what did you actually measure? What, if
anything, did you calculate from your measured quantities, and why?
The experiment measures reactio
Q1: Describe your design. Include a statement of the problem, as well as your
determination of what it means for the approximation to be valid and the
criteria for which you tested. Be sure to include your rationales and support
all of your statements. Ho
This purpose of this experiment was to calibrate a cannon. The objective of
the lab was to figure out how shoot a ball from a cannon into a basket that was 1.1
meters away from the shooter. In the lab, equations were derived to figure out th
Everyone knows that a safe laboratory is a fun laboratory. So when working in a
science laboratory, there are some important rules that need to be followed before
conducting your science experiment. Students must BE PREPARED for clas
DNA Model Instructions Biotech Bootcamp
Is fooling around ever
okay in a lab?
Name one kind of shoe
that should never be
worn in a lab
Name 2 pieces of safety
equipment that should
always be worn in a lab
If you get hurt, what
What makes you.you!
Hottest Mixtape of 2016
What is DNA?
found in most cells
Where is it located?
Nucleus of the cell
Directs cell to
Student sign in name tags
Greetings! (15 min)
Assign group leaders
explain week and daily schedule
Name game (15 min)
DNA lesson (15 min)