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Labs

Procedures

Hands On

Virtual

 

Procedures

 

Students work in groups of 3 and 1 lab report is required to be submitted per group. Each student, however, is encouraged to keep a copy of the report. The report is graded and return to the group. Each lab report is required to contain, as a minimum, the following sections:

 

1. Problem statement: Clear statement of what you are trying to do.

2. Hypothesis: Suggested explanation of the observed phenomenon.

3. Approach: Short summary of how you plan to solve the problem.     

4. Data recorded: Data obtained from the experiment – turn in your initialed data sheet.

5. Analysis of the data: What the data means.

6. Conclusion:

    a. What conclusions do you draw from the above analysis?

    b. What are possible sources of error?

    c. What are some suggestions for future work in this area?

 

Hands On

 

Some of the labs described below incorporate an "open ended" approach in which students have to determine the relevant data to collect, etc. Each lab is 2 periods in length (100 minutes).

 

At least 12 of these or similar labs are completed by the students during the two-semester course.

 

Number

Area

Lab Title, Objective, and Equipment

1

I.  Newtonian Mechanics

    A. Kinematics

Title: Projectile Motion

Objective: Determine muzzle velocity of projectile and the angle at which the maximum range can be obtained

Equipment: Projectile canon, tape measure

2

I. Newtonian Mechanics

    B. Laws of Motion

Title: Atwood’s Machine

Objective: Determine acceleration in system and tension in the string

Dynamics cart and track, meter stick, photo gate, masses, and scale

3

I. Newtonian Mechanics

    B. Laws of Motion

Title: Frictional Forces

Objective: Determine static and kinetic coefficients of friction

Equipment: Rectangular blocks of different materials, spring scale, inclined plane

4

I. Newtonian Mechanics

    C. Work, Energy , Power

Title: Conservation of Mechanical Energy

Objective: Determine the velocity of the system in order to verify the conservation of ME

Equipment: Dynamics cart and track, timer gate, masses, meter stick, scales

5

I. Newtonian Mechanics

    D. Linear Momentum

Title: Linear Momentum

Objective: Determine the velocity of each glider pre and post collision in order to verify conservation of linear momentum

Equipment: Air track set

6

I. Newtonian Mechanics

    E. Circular Motion, Rotation

Title: Centripetal Force

Objective: Determine velocity of flying object and tension in string

Equipment: Flying pig, meter stick

7

II. Fluid Mechanics and

     Thermal Physics

     A. Fluid Mechanics

Title: Archimedes’ Principle

Objective: Determine the density of two unknown materials

Equipment: Triple beam balance, can , beaker, metal objects, string

8

II. Fluid Mechanics and

     Thermal Physics

     A. Fluid Mechanics

Title: Torricelli’s Theorem

Objective: Determine exit velocity of a liquid and range attained with holes at various heights

Equipment: Clear plastic bottle with holes at various heights, container

9

II. Fluid Mechanics and

     Thermal Physics

     B. Temperature and Heat

Title: Coefficient of Linear Expansion

Objective: Determine the coefficient of linear expansion of two metal rods

Equipment: Two metal rods, meter stick

10

II. Fluid Mechanics and

     Thermal Physics

     C. Kinetic Theory, Thermo

Title: The Ideal Gas Law

Objective: Verify that the pressure of a gas (use air) at a fixed temperature is inversely proportional to the gas volume and verify that the volume of a gas at a fixed pressure is proportional to the gas temperature.

Equipment: Boyle’s law apparatus

11

III. Electricity and Magnetism

      A. Electrostatics

Title: Coulomb’s Law

Objective: Determine the charge on 2 spherical polystyrene balls

Equipment: Balls, string, stand, meter stick

12

III. Electricity and Magnetism

      B. Conductors, Capacitors

Title: Investigation of Static Electricity

Objective: Make qualitative observations of the behavior of an electroscope when it is charged by conduction and by induction

Equipment: Electroscope and electrostatic materials set

13

III. Electricity and Magnetism

      C. Electric Circuits

Title: Series and Parallel Circuits

Objective: Investigate the behavior of resistors in series, parallel, and series-parallel circuits.

Equipment: Circuit board set, voltmeter, ammeter, batteries.

14

III. Electricity and Magnetism

      D. Magnetic Fields

Title: Magnetic Field Investigation

Objective: Map the magnetic field around a bar magnet and determine the strength of the magnetic field

Equipment: Bar magnet, compasses, meter stick, protractor

15

III. Electricity and Magnetism

      E. Electromagnetism

Title: Electromagnetic Induction

Objective: Qualitatively examine the effects of changing magnetic field by observing currents induced in a solenoid and determine if observations agree with theory of electromagnetic induction and Lenz’s law

Equipment: Power supply, galvanometer, bar magnet, solenoid

16

IV. Waves and Optics

      A. Wave Motion & Sound

Title: Standing Waves in a String

Objective: Determine the experimental value of the frequency by using a graph and collected data

Equipment: String vibrator, pulley, meter stick, masses

17

IV. Waves and Optics

      B. Physical Optics

Title: Interference

Objective: Determine the wavelength of a source of light by using a double slit and a diffraction grating of known spacing

Equipment: He-Ne Laser, slits, meter stick

18

IV. Waves and Optics

      C. Geometric Optics

Title: Index of Refraction

Objective: Determine the index of refraction of an acrylic block

Equipment: Optics bench, ray table, light source and acrylic block

20

IV. Waves and Optics

      C. Geometric Optics

Title: Mirrors and Lenses

Objective: Determine focal length of a converging lens

Equipment: Optics materials, lenses, mirrors, light source

21

IV. Waves and Optics

      C. Geometric Optics

Title: Concave Mirrors

Objective: Determine locations where a real image can be formed

Equipment: Optics materials, lenses, mirrors, light source

22

V. Atomic and Nuclear Physics

    A. Atomic Physics and

         Quantum Effects

Title: Measuring Planck's Constant

Objective: Demonstrate that the energy E is proportional to the frequency f, E = hf with h being Planck's constant

Equipment: LEDs of different colors, graph paper

 

Virtual

 

Virtual labs, using Physics Physlets from the references above, are assigned throughout the course. Since my classroom is in a lab I also use for computer science courses, each student has access to a computer. Some of the homework assignments utilize Physlets. These virtual labs complement some of the actual labs listed above. They are also used to illustrate other topics covered in the course.

 

The primary focus, however, is on the hands on labs listed above. Virtual labs are used in the homework portion of the assignments.

 

Number

Title

Area

1

Compare Position vs. Time and Velocity vs. Time Graphs

One-Dimensional Kinematics

2

Space Probe with Constant Acceleration

Two-Dimensional Kinematics

3

Space Probe with Multiple Engines

Newton's Laws

4

Air Friction

Newton's Laws

5

The Gravitational Force and Work

Work

6

Choice of Zero for Potential Energy

Energy

7

An Explosive Collision

Momentum

8

Non Uniform Circular Motion

General Rotations

9

The Stacking of Bricks

Statics

10

Blood Flow and the Continuity Equation

Fluids

11

Superposition of Two Pulses

Waves

12

Doppler Effect and the Velocity of the Source

Sound

13

Expansion of Materials

Heat and Temperature

14

Kinetic Theory: Microscopic and Macroscopic Aspects

Kinetic Theory and Ideal Gas Law

15

Internal Combustion Engine

Engines and Entropy

16

Dipole Symmetry

Electrostatics

17

Field Lines and Trajectories

Electric Fields

18

Conducting and Insulation Sphere

Gauss's Law

19

Electric Potential Around Conductors

Electric Potential

20

Equivalent Capacitance

Capacitance and Dielectrics

21

Map Field Lines and Determine Forces

Magnetic Fields and Forces

22

Loop in a Time-Varying Magnetic Field

Faraday's Laws

23

Designing a Voltage Divider

DC Circuits

24

Amplitude, Frequency, and Phase Shift

AC Circuits

25

Representation of Plane Waves

EM Waves

26

Ray Diagrams

Mirrors

27

Snell's Law and Total Internal Reflection

Refraction

28

Telescope

Optical Applications

29

Photoelectric Effect

Atomic an Nuclear Physics