1) Explain why the block should move at constant speed in
Newtons 1st Law of motion states; If there is no net force acting on a body,
it will continue in its state of rest or will continue moving along a straight line
with uniform speed.
1) What is the main purpose of a simple machine?
A simple machine is a device that, in simple terms, does useful
work. Work is defined as force acting on an object in the
direction of motion, a machine makes work easier to perform
by accomplishing one or
Due before lab begins.
1) Explain briefly the different types of frictional forces.
2) How does the coefficient of friction depend upon the area of contact? Explain.
3) Give some examples in which the force of friction caus
State in your own words what your
conclusion is from this experiment.
The experiment proves that we are able to split a force into components by
representing it in vector quantity and applying laws of sine and cosine. We
can separate components analytical
EXPERIMENTAL ERROR AND DATA ANALYSIS
1. INTRODUCTION: Laboratory experiments involve taking measurements of
physical quantities. No measurement of any physical quantity is ever perfectly accurate,
except possibly the counting of objects. The discrepancy b
Friction Forces Lab
Finding an objects
through the use of tension force
Victor Jeung, Cathy Liu, Jason Feng, Terry Tong
2011 October 14
Friction Force Lab
The purpose of this lab is to help better understand what friction is and how it affects
Q.1Explain briefly the different types of
Static friction (fs):
when a force is applied to an object but it does not cause it to move example: pushing on a wall.
This exists when the object is at rest relative to the surface. This force
Stoichiometry: The study of quantities of materials
consumed and produced in chemical reactions.
In macroworld, we can count objects by weighing
Objects behave as though they were all identical
Element of Design
1. A point in motion.
2. A series of adjacent points.
3. A connection between points.
4. An implied connection between points.
5. One of the most fundamental elements of art and design.
Directions in Line
To draw a line, yo
Physical constants and Formulae you may need!
G = 6.67x10-11 N-m2/kg2
NA = 6.02x1023 particles/mol
Ax = Acos
Ay = Asin
x = xf - xi
vav = x/t
aav = v/t
average speed =
total distance / total time.
x = (vf+vi)t
x = vit + at2
v2f = v2i + 2ax
x = vx
Density is the measurement of the compactness of matter in a substance. This might
be done experimentally by measuring the mass and obtaining the volume of the
substance. The volume may be obtained depending on the shape of th
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question
1) Find a FALSE statement about X-rays.
A) radiation of wavelength approximating 1 Angstrom
B) visible to the naked eye
In physics, to explain something means to create a
model that can predict the outcome of experiments.
Motions appear to be reproducible; that is, if we start out
with the same conditions and do the
For instructors eyes only
You may be surprised to learn
that over 25% of all undergraduate students do not utilize
their required course materials.
on slide 7
student retention is dropping nationwide and while the
We know that it is harder to get a
more massive object moving from rest
than a less massive object.
This is the concept of inertia previously
introduced in Chapter 3: i.e. F = ma, or,
rearranged, a = F/m. (Frict
Energy is one of the
most fundamental and
in the physics world
view. It took nearly
300 years to fully
develop the ideas of
energy and energy
that the total energy
of an isolated sys
Motions in Space
So far, we have restricted our
discussion to straight-line, or
We can apply the laws that were
developed for one dimension to many
common motions in space.
3-D motions can be divided into
Units of Rotational Motion
The rules for rotational motion have
many analogies with translational
The distance traveled is no longer measured
in ordinary distance units like feet or
meters, but in an angular me
What Is Gravity?
In the physicists view of the world,
there are four fundamental forces:
We begin our studies of forces with
the most familiar force in our
What is gravity
States of Matter
All matter is composed of approximately
100 different elements.
Yet the material world we experience
say, in a walk through the woodsholds
a seemingly endless variety of forms.
This variety arises from the particul
Observers moving relative to each other
often do not agree on the description
of the motion
you are in a free-
falling elevator in an office
building. Your friend is standing
When we talk about the properties of objects, we usually
think about their bulk, or macroscopic, properties.
But a gas is composed of particles that have their own
characteristics, such as velocity, momentum, an
When observers in different inertial
reference systems describe the same
events, their reports dont match. In the
framework of classical relativity, they
their descriptions of the paths;
Lab 3: Electrostatics
July 21, 2015
This experiment allowed to investigate the production of static charge, charging by: induction
and contact, the measurement of charge, grounding techniques, and
Lab 6: Ohms Law and Resistors in DC Circuits
July 27, 2015
In this lab we will confirm that resistors obey Ohms Law and explore how equivalence
resistance changes when resistors are connected in s
Lab 2: Specific Heats of Metals
July 20, 2015
Every substance requires a different amount of heat application to observe a temperature
change. This characteristic is known as specific heat; which
Lab 4: Use of a Multimeter
July 22, 2015
Many types of analog multi-meter can measure DC current, DC volt, AC current, AC volt as well
as resistance. We will be using a analog multi-meter to measu
1. What are the four common phases of matter?
The common four phases of matter are; solid, gases, liquid and plasma
2. Do the molecules in a liquid all have about the same speed, or do they have a wide variety of speed?
NO, they have large vari
4. Which requires more work: lifting a 50kg sack a vertical distance of 2m or
lifting a 25kg sack a vertical distance of 4m?
Answer= It is the same, for the product of each is the same; (50 kg) (2 m) =
(25 kg) (4 m).
7. A car is raised a certain