Physics 194
Final exam practice problems solutions
1. In class you learned about Davisson & Germers experiment that demonstrated the wavelike behavior of electrons.
They also found that electrons exhibited interference effects when they were fired at crys
Lab 4: Magnetism
Physics 194
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Lab 4: Magnetism
LEARNING GOALS OF THE LAB:
1. Learn how to use the available equipment to design an experiment to reach a desired goal.
2. Learn to apply your knowledge of force diagrams to understand situ
Lab 5: Electromagnetic induction
Physics 194
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Lab 5: Electromagnetic Induction
LEARNING GOALS OF THE LAB:
1. Figure out the conditions under which a current can be induced in a coil that is not connected to a battery.
2. Figure out what
Lab 3: The Electric Potential and Electric Currents
Physics 194
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Lab 3: The Electric Potential and Electric Currents
LEARNING GOALS OF THE LAB
1. Learn to represent the electric interaction using the electric potential and learn why elec
Physics 194
Exam #1 practice problems
1. For each of the statements below, if true, write a response to convince Mike that the statement is true. If not true,
write a response to convince Mike that the statement is not true.
a. You spill some sugar on
Physics 194
Exam #1 practice problems solutions
1. For each of the statements below, if true, write a response to convince Mike that the statement is true. If not true,
write a response to convince Mike that the statement is not true.
a. You spill som
Recitation ClassWork 9 solutions
Physics 194
1. A narrow beam of light is incident on mirror A at a 30 degree angle. Mirror
A is 1 m in length. Mirror B is perpendicular to the mirror A (as shown in the
figure) and is 0.5 m in length. Where would you
Recitation ClassWork 9
Physics 194
Goals
Rubrics relevant for these problems:
Understand the law of reflection and how to apply it to ray trace the
A10
paths light rays take.
Rubrics attached at end of recitation
Understand image formation and pre
Recitation ClassWork 7 solutions
Physics 194
1. ALG 19.4.11. The string and objects you need to make the pendulum are up on the cart. Please return them when
you are done. Be sure to perform multiple trials and include the uncertainty in your result. T
Recitation ClassWork 7
Physics 194
Goals
Design an experiment to accurately determine the strength of the
gravitational field near Earths surface.
Use multiple representations to help understand simple harmonic
motion (vibrational motion).
Be able t
Recitation ClassWork 6
Physics 194
Goals
Recall how to create motion diagrams, force diagrams, and energy bar
charts.
Be able to check for consistency between those representations.
Use those representations to begin investigating vibrational motion.
Recitation ClassWork 6 solutions
Physics 194
1. ALG 19.2.1. Its been a while since weve used motion diagrams. They are described on page 1-8 in the ALG.
2. ALG 19.2.2. For a refresher on energy bar charts check out page 6-12 in the ALG.
3. A
Recitation ClassWork 8
Physics 194
Goals
Be able to understand the conditions for standing waves to appear.
Understand the Doppler Effect and how to apply the sign conventions used in the equation.
Learn how graphs can be used to represent traveling w
Recitation ClassWork 5 solutions
Physics 194
1. ALG 17.4.6. Hints: Before looking into any of the mathematical details, decide conceptually if this approach is even
feasible. Can the net magnetic force exerted by the B-field on the rectangular circuit
Exam 1 solutions
Name:
Physics 194
Instructions:
Score
The responsibility is yours to show me that you understand what you are doing so please
show all your work. If you feel you are stuck on a particular part explain as much of your
thinking a
Practical 1
Physics 194
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Youll be working in groups on this lab practical just as you do in lab each week. Get together with your group ahead of
time and do some planning. Itll definitely pay off. Once you have some ideas feel free to con
Homework 1 solutions
Notes: Please keep in mind that most of the problems in MasteringPhysics with numerical answers are
randomized for each student. The solutions below correspond to the version of the problem that is in the
paper copy of the textbo
Lab 7: Waves
Physics 194
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Lab 7: Waves
LEARNING GOALS OF THE LAB
1. To evaluate the assumptions used to make a prediction and revise the assumptions if necessary.
2. To understand how the properties of the medium affect the speed of a p
Recitation ClassWork 1
Physics 194
Goals
Use your conceptual model of the electric interaction and of
insulators/conductors to predict what will happen.
Construct force diagrams for situations involving the electric interaction.
Apply Newtons laws for
Recitation ClassWork 4 solutions
Physics 194
1. The 12 V battery of a car produces a 0.20 A current through the cars radio.
a. Determine the power output of the radio.
b. Determine the amount of electric potential energy delivered to the radio in 30 m
Recitation ClassWork 8 solutions
Physics 194
1. Textbook reading
2. Discuss ALG 20.1.7 and 20.1.8 with your group, then do ALG 20.3.9. The equation being referred to is the Doppler
effect equation we developed in lecture.
3. ALG 20.4.13
4. A
Recitation ClassWork 2
Physics 194
Goals
Apply Newtons laws for situations involving the electric interaction.
Learn to visualize and understand the electric field produced by charges
with the help of a simulation.
Use your understanding of the electr
Recitation ClassWork 5
Physics 194
Goals
Understand quantitatively the force that the magnetic field exerts on currents.
Develop deeper understanding of electromagnetic induction.
Combine your conceptual understandings of magnetism to predict what will
Recitation ClassWork 3
Physics 194
Goals
Understand the concept of electric potential difference.
Understand the conditions needed for an electric current to exist.
Develop a conceptual understanding of electric circuits.
1. ALG 16.1.1
2. ALG 16.1.2
Lab 8: Reflection and Mirrors
Physics 194
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Lab 8: Reflection and Mirrors
LEARNING GOALS OF THE LAB:
1. To learn how to experimentally test a hypothesis.
2. To understand that each point on a light source radiates light in all directions
Recitation ClassWork 3 solutions
Physics 194
1. ALG 16.1.1
Initially the tube, the wool, and the
electroscope are all at zero electric
potential. When the tube is rubbed it
becomes positively charged (lets
assume) which means its electric
potentia
Recitation ClassWork 2 solutions
Physics 194
1. This problem has multiple possibilities: 1) The spoke is not a conductor. 2) The spoke is a
conductor.
Spoke is not a conductor
Each bead maintains its original charge because no electrons can flow through
Recitation ClassWork 4
Physics 194
Goals
Understand series and parallel circuits.
Understand how to apply Kirchhoffs rules to determine the current(s) in a circuit.
Be able to determine the power output of a resistive device and the power input of a po
Homework 2 solutions
Notes: Please keep in mind that most of the problems in MasteringPhysics with numerical answers are
randomized for each student. The solutions below correspond to the version of the problem that is in the
paper copy of the textbo