Notebook FV2 - Forces and vectors
.docx
keyboard_arrow_up
School
Iowa State University *
*We aren’t endorsed by this school
Course
MISC
Subject
Physics
Date
Apr 3, 2024
Type
docx
Pages
9
Uploaded by SargentJay3542
Lab FV2 - Forces and vectors
Equipment
Metal board with magnetic accessories:
o
Two pulleys
o
Force wheel with central floating disk
Set of hangers and masses
Important (READ!!!)
To lift and move the magnetic
components on the board, always handle
the component by the magnetic base.
Magnetic elements that are not in use
should be kept stuck to the back of the
board
Lab FV2 - Page 1
The apparatus
The apparatus illustrated below will be used to study the relation between forces in an equilibrium condition. Find the force wheel with the floating disk in the center. Three strings should be already threaded through the center hole. If one or more are missing, please ask your instructor for assistance.
Each of the strings should be used to support a hanger with masses as shown. The pulleys have very low friction, so the tension in the strings will be equal to the weight of the hanger + masses.
Do NOT use the same masses left and right
(
i.e
., do not use a symmetrical setting: it’s a boring one!). Start by placing mass on the center hanger, then add masses to the other hangers and adjust the angles of the strings by moving the pulleys until the disk at the center of the force wheel is more or less “floating”. Finally, lift the force wheel gently off the board and move it on the board as needed until the floating disk is perfectly centered with the force wheel. In this position, the disk is, indeed, floating: it is not in contact with the wheel. If we neglect the weight of the disk (which is indeed very small), the only forces acting on it are the three tensions in the strings. Lab FV2 - Page 2
Prelab review: components of forces and propagation of uncertainty
For this activity, we will concentrate on one of the forces: the tension in the top, right string, indicated as T
1
in the figure below.
What is the magnitude of T
1
in your setup? Don’t forget to take into account the mass of the blue hanger!
56 degrees
22 grams
22 * 9.81 = 215.82 millinewtons
Forces are vectors, and so we need to work with their components. Write the components of T
1 for the coordinate axes shown in the figure, in terms of the magnitude T
1
and the angle θ
1
. (This should be an algebraic expression, do not use numerical values yet.)
T
1
x
=
T
1
cosϴ
T
1
y
=
T
1
sinϴ
To measure the angle with ease, the dial of the force wheel can be rotated to align the 0° mark with +
x
direction. If your x axis is horizontal, the bubble level will be helpful.
What is the value of θ
1
in your setup? ϴ
1
=
56
degrees
Lab FV2 - Page 3
Use the measured value of T
1
and θ
1
to calculate the numerical value of the components of .
T
1
x
=
120.68
millinewtons
T
1
y
=
178.92
millinewtons
Uncertainty
However, no measurement is perfect! The masses we are using have an uncertainty of
2% around their nominal value.
A reasonable estimation of the uncertainty in the angles could be set to
1° (we can read the angle with
a precision of about 0.5°, but we are increasing it to account for the friction in the system, which results in a certain variation in the position of the strings in equilibrium).
Rewrite the values of your experimental values for T
1
and θ
1
, including uncertainty:
T
1
=
(
215.85
±
4.32
)
millinewtons
ϴ
1
=
56
±
1
Uncertainty is propagated through any calculation. Rewrite the components of including uncertainty. (This is what you did in the prelab.)
T
1
x
=
120.68
±
4.75
millinewtons
T
1
y
=
178.92
±
3.21
millinewtons
Lab FV2 - Page 4
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help
Related Questions
°8. A circular loop is conducting current in a counter-clockwise direction as shown.
wire carn
A number of changes to this initial situation are described in 1-6 below. Select from choices a-e
how each change will affect the magnetic field at the center of the loop.
arrow_forward
Please no hand writing solution
arrow_forward
solve and explain the steps
arrow_forward
3. Two straight wires are fixed in place near one
another, and carry equal currents io in
opposite directions.
a) Sketch the two contributions to the net
magnetic field at point P.
2d
ig
out of
2d
page
into page
b) Add these vectors graphically to obtain a
sketch of the net magnetic field vector at P.
c) Calculate the magnitude and direction of the
magnetic field at P. *
end view
arrow_forward
I'M NOT SURE
arrow_forward
Assume that I = 4.0 A andd = 2.5 cm
Part A
What is the strength of the magnetic field at the center of the loop in the figure? (Figure 1)
Express your answer to two significant figures and include the appropriate units.
?
B = 0.000064
You have already submitted this answer. Enter a new answer.
No credit lost Try again.
Submit
Previous Answers Request Answer
Part B
What is the direction of the magnetic field at the center of the loop?
Figure
out of the screen
1 of 1
into the screen
Previous Answers
V Correct
Provide Feedback
d
arrow_forward
The right half of the square loop of wire shown in (Figure 1) is
in a 0.45 T magnetic field directed into the page. The current
in the loop is 1.5 A in a clockwise direction
Part A
What is the magnitude of the force on the loop?
Express your answer with the appropriate units.
µA
?
F =
Value
Units
Submit
Request Answer
Part B
In which direction does this force act?
O to the left
O to the right
upward
downward
Figure
< 1 of 1
Submit
Request Answer
Provide Feedback
5.0 cm
X X X
arrow_forward
How to solve this question
arrow_forward
Help me to solve the sub-part (A) only,
only typing is needed
arrow_forward
The figure at right shows two current
carrying wires, which are oriented
perpendicular to the page. The
currents are the same magnitudes but
• A
opposite directions as indicated by the
usual convention.
wire 1
wire 2
What is the direction of the the net
magnetic field vector at point A.
A.
С.
D.
E.
F.
into the
out of the
page
page
B.
arrow_forward
question 1 image is attached as an image.
arrow_forward
The right half of the square loop of wire shown in (Figure 1) is in a 0.85 T magnetic field directed into the page. The current in the loop is 1.1 A in a clockwise direction.
1. What is the magnitude of the force on the loop? Express your answer with the appropriate units.
2. In which direction does this force act?
A. to the left
B. upward
C. downward
D. to the right
arrow_forward
Can you show the picture portrait and problem solving process as well?
arrow_forward
2. A hypothetical charge q with a mass m moves in a circular path perpendicular to a uniform magnetic field with a magnitude of B and is direct into the page. If the speed of the hypothetical charge is v:
A. Determine the radius of the circular path.
B. Determine the time interval required to complete one revolution.
Pointing System for Number 2:
• What are the given in the problem?
• What are the unknown variables?
• What are the equations that you are going to use?
• Solution and answer for Part A.
• Solution and answer for Part B.
arrow_forward
The direction of current in a conducting wire is shown in the figure below. What is the direction of the
magnetic field that produces the magnetic force as shown?
Fin
I
out of the page
a.
b. to the left
c. to the right
d. upward
arrow_forward
Two current-carrying loops are arranged so that they form concentric circles as shown in the figure below. The bigger loop (radius = 0.80 m) has a 5.00 A-current passing through it. The smaller loop has a radius of 0.40 m.
1. Draw the magnetic field (use 2 different colors) produced by each current carrying loop.
2. Determine the magnitude of the current in the inner loop so that the resulting net magnetic field at the center of the concentric loops will be zero. (Hint: This will only happen when the directions of the magnetic field produced by each loop are opposite in direction)
arrow_forward
I don't understand how to solve this how do I do it
arrow_forward
Then the ions enter to velocity selector region. In this region both electric and magnetic fields are applied. Next theyenter into the mass spectrometer region. In this region there is magnetic field different than the previous region. Depending of the charge of the ions, they travel in a circular path with a well-defined radius either to the left or to the right.
1.The mass difference between two isotopes is sometimes just a neutron mass. The spectrometer should separate them very well. For such an isotope combination, the difference in radius should be around 1 cm. That is . In order to achieve this, choose a magnetic field with a magnitude in Tesla (maximum magnetic field you can obtain from a conventional magnet is around 2.5 T so be far away from this value) and choose the direction also. Then determine the velocity of isotope you need. Last calculate radius r of a smallest isotope.
2.In order to produce this magnetic field, determine the current and number of turns, radius and…
arrow_forward
6
arrow_forward
A 1.85 m long metal bar having a weight of 3.50 N and a resistance of 10.0 S2, rests horizontally on conducting
wires connecting it to the circuit shown in (Figure 1). The bar is in a uniform, horizontal, 1.65 T magnetic field and
is not attached to the wires in the circuit.
Figure
a =
Submit Request Answer
Part B
What is the magnitude of the acceleration of the bar just after the switch is closed?
Express your answer in meters per second squared to three significant figures.
15. ΑΣΦ
to the left
to the right
120.0 V
downward
upward
Submit
T
25.0 Ω
www
Request Answer
10.0 Ω
What is the direction of the acceleration of the bar just after the switch is closed?
S
?
1 of 1
m/s²
arrow_forward
Please please solve accurate and exact please this is very important for me. I will rate it up if accurate
arrow_forward
In the figure below we have a wire loop with resistance R. in the gray area, magnetic field is constant and equal to B
Figure1
We assumed that wire loop in the figure below has a resistance R so the current generated is : I=vBh/R
But what if R=0 (perfectly conductive material)
What happens when we move the loop with speed v?
arrow_forward
How do I solve the attached physics question about magnetic forces and fields?
arrow_forward
a) The ring below represents a circular ring of wire with current going to the right in the front and
then going back into the page (ask me if you're not sure you understand what the picture is). On
one or both of the views, sketch the magnetic field lines that this object with current creates.
Front View
Overhead View
current
current
b) Considering the field lines you drew above, explain why this object (a loop of wire) is often
called a magnetic "dipole"
arrow_forward
2.) The diagram below shows a proton moving through an external magnetic field at a particular instant of time.
a.) At the instant shown, would the magnetic field be exerting any force on the proton? If so, in which direction? Sketch the force vector on the diagram.
b.) How would your answers change if the particle were an electron
arrow_forward
a) What would happen to the magnetic field and the current if the direction of motion of the magnet is reversed?
b) What would happen to the magnetic field and the current if the magnet is moved more quickly in the same direction?
c) What would happen to the magnetic field and the current if the magnet is moved rapidly back and forth?
My Answer:
I attached my answer below as well as the drawing of the coil and magnet. I am just unsure as to whether my first to answers (a and b) are correct and then for c), what the affect on the magnetic field is.
a) Current: If the direction of motion of the magnet was reversed then the direction of the current would also be reversed.
Magnetic Field: Since the magnetic field in the coil wants to oppose the moving magnetic field, an induced magnetic field will be created that will attract the magnet and prevent it from moving away from the coil.
b) Magnetic Field and Current: If the magnet moved more quickly in the same direction, then the…
arrow_forward
this is for my physics homework can you please help
arrow_forward
SEE MORE QUESTIONS
Recommended textbooks for you
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Related Questions
- °8. A circular loop is conducting current in a counter-clockwise direction as shown. wire carn A number of changes to this initial situation are described in 1-6 below. Select from choices a-e how each change will affect the magnetic field at the center of the loop.arrow_forwardPlease no hand writing solutionarrow_forwardsolve and explain the stepsarrow_forward
- 3. Two straight wires are fixed in place near one another, and carry equal currents io in opposite directions. a) Sketch the two contributions to the net magnetic field at point P. 2d ig out of 2d page into page b) Add these vectors graphically to obtain a sketch of the net magnetic field vector at P. c) Calculate the magnitude and direction of the magnetic field at P. * end viewarrow_forwardI'M NOT SUREarrow_forwardAssume that I = 4.0 A andd = 2.5 cm Part A What is the strength of the magnetic field at the center of the loop in the figure? (Figure 1) Express your answer to two significant figures and include the appropriate units. ? B = 0.000064 You have already submitted this answer. Enter a new answer. No credit lost Try again. Submit Previous Answers Request Answer Part B What is the direction of the magnetic field at the center of the loop? Figure out of the screen 1 of 1 into the screen Previous Answers V Correct Provide Feedback darrow_forward
- The right half of the square loop of wire shown in (Figure 1) is in a 0.45 T magnetic field directed into the page. The current in the loop is 1.5 A in a clockwise direction Part A What is the magnitude of the force on the loop? Express your answer with the appropriate units. µA ? F = Value Units Submit Request Answer Part B In which direction does this force act? O to the left O to the right upward downward Figure < 1 of 1 Submit Request Answer Provide Feedback 5.0 cm X X Xarrow_forwardHow to solve this questionarrow_forwardHelp me to solve the sub-part (A) only, only typing is neededarrow_forward
- The figure at right shows two current carrying wires, which are oriented perpendicular to the page. The currents are the same magnitudes but • A opposite directions as indicated by the usual convention. wire 1 wire 2 What is the direction of the the net magnetic field vector at point A. A. С. D. E. F. into the out of the page page B.arrow_forwardquestion 1 image is attached as an image.arrow_forwardThe right half of the square loop of wire shown in (Figure 1) is in a 0.85 T magnetic field directed into the page. The current in the loop is 1.1 A in a clockwise direction. 1. What is the magnitude of the force on the loop? Express your answer with the appropriate units. 2. In which direction does this force act? A. to the left B. upward C. downward D. to the rightarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill