LAB EXPERIMENTS

The list below shows the lab experiments performed in my course.
Most of the lab experiments are open ended where the students are given an objective and a list of equipment. Students design their own procedure, data gathering and data analysis.
The allotted time given is for conducting the experiment and recording the
pertinent data. The students perform the data analysis and complete the lab
report at home. A lab report is required for most experiments.
We hold post-lab discussions after I have graded their lab notebooks.

1. Vector Addition
Objective: To compare the experimental value of a resultant of several vectors to the values obtained through graphical and analytical methods.
Equipment: A force table set
Type of Lab: Open-ended
Allotted time: 45 min

2. Motion in One-Dimension
Objective: To analyze the motion of objects moving at constant speed and at uniform accelerated motion. Data should be collected to produce graphs of x versus tv versus t and a versus t  for each object.
Perform graphical analysis from the slopes and/or areas under the curves as appropriate. Mark your work clearly on every graph.
Equipment: A video camera to record the motion of an object at constant velocity and an object in accelerated motion.
LoggerPro3.6 to perform video analysis.
Type of Lab: Open-ended
Allotted time: 90 min

3. Projectile Motion
Objectives: To determine the initial velocity of a projectile and the angle at which the maximum range can be attained.
Equipment: A projectile launcher and a meterstick.
Type of Lab: Open-ended
Allotted time: 50 min

4. Atwood's Machine: Newton's Second Law
Objectives: To determine the acceleration of a system and the tension in the string.
Equipment: Modified Atwood's machine: dynamics cart and track, meterstick, stopwatch or photogate and a set of masses.
Type of Lab: Open-ended
Allotted time: 50 min

5. Frictional Forces
Objectives: Determination of static and kinetic coefficients of friction using two different methods.
Equipment: Rectangular blocks of different materials (felt and wood), spring scale, wooden board that can be used as an inclined plane, protractor.
Type of Lab: Open-ended
Allotted time: 50 min

6. Conservation of Mechanical Energy
Objective: To determine the work due to non-conservative forces in the case of a cart moving up and down an inclined plane by two different methods.
Equipment: Wooden board, cart, pulley, a set of masses, meterstick and stopwatch or photogate.
Type of Lab: Open-ended
Allotted time: 50 min

7. Conservation of Linear Momentum
Objectives: To determine the velocity of each glider before and after a collision.
Equipment: Air track set.
Type of Lab: Open-ended
Allotted time: 50 min

8. Centripetal Force
Objectives: To determine the velocity of a flying toy and the tension in the string.
Equipment: Holy Cow or Flying Pig, a meterstick and a triple-beam balance
Type of Lab: Open-ended
Allotted time: 30 min

9. Potential Energy Investigation: Spring and Gravitational.
Objectives: To determine the spring constant of the spring, and evaluate the extent to which the change in gravitational potential energy of the mass is equal to the change in the spring potential energy.
Equipment: Hooke's law apparatus, a set of masses and a meterstick.
Type of Lab: Open-ended
Allotted time: 50 min

10. Kepler's Laws
Objectives: To plot a planetary orbit and apply Kepler's Laws
Equipment: Worksheet with planetary data and polar graph paper.
Type of Lab: Teacher directed.
Allotted time: None in class, this lab exercise is given as a homework assignment.

11. Archimedes' Principle
Objectives: To determine the density of two unknown materials.
Equipment: Triple- beam balance, overflow can, beaker, various metal objects and string
Type of Lab: Open-ended
Allotted time: 30 min

12. Torricelli's Theorem
Objectives: To determine the exit velocity of a liquid and to investigate the range attained with holes at varying heights.
Equipment: Clear plastic bottle with three holes at various heights, plastic container, water and meterstick.
Type of Lab: Open-ended
Allotted time: 50 min

13. Coefficient of Linear Expansion
Objectives: To determine the coefficient of linear expansion of two metal rods.
Equipment: Linear expansion apparatus.
Type of Lab: Teacher directed
Allotted time: 50 min

14. The Ideal Gas Law
Objectives: To experimentally verify Boyle's and Charles' Laws.
Equipment: Boyle's law apparatus, a set of masses, thermometer, heating plate
and ice.
Type of Lab: Open-ended
Allotted time: 50 min

15. Efficiency
Objective: To determine the efficiency of a hair dryer.
Equipment: T-shirt, water, bucket, mass balance, hair dryer of known power output.
Type of Lab: Open-ended
Allotted time: 50 min
Hint: Students must use the fact that it takes 2260 J of heat energy to vaporize one gram of water.

16. Static Electricity Investigation
Objectives: To make qualitative observations of the behavior of an electroscope when it is charged by conduction and by induction
Equipment: Electroscope and electrostatic materials set
Type of Lab: Open ended
Allotted time: 30 min

17. Coulomb's Law
Objectives: To determine the charge on two spherical polystyrene balls
Equipment: Polystyrene balls, string, stand and a meterstick.
Type of Lab: Open-ended
Allotted time: 20 min

18. Equipotential Lines and Electric Fields
Objectives: To map both the potentials and the electric fields around a system
of two-dimensional charged conductors.
Equipment: Field mapper kit
Type of Lab: Teacher directed
Allotted time: 50 min

19. Series and Parallel Circuits
Objectives: To investigate the behavior of resistors in series, parallel and
series-parallel circuits.
The lab should include measurements of voltage and current.
Equipment: Circuit board set, voltmeter, ammeter and batteries
Type of Lab: Open ended
Allotted time: 90 min

20. Magnetic Field Investigation
Objectives: To map the magnetic field around a bar magnet and to determine
the strength of the magnetic field
Equipment: Bar magnet, compasses, meterstick and protractor
Type of Lab: Open ended
Allotted time: 30 min

211. Electromagnetic Induction
Objectives: To qualitatively examine the effects of changing magnetic field by observing currents induced in a solenoid and to determine whether your observations agree with the theory of electromagnetic induction and Lenz' Law.
Equipment: Power supply, galvanometer, bar magnet and solenoid
Type of Lab: Open ended
Allotted time: 30 min

22. Standing Waves in a String
Objectives: To determine the experimental value of the frequency.
Equipment: Electric string vibrator, string, pulley with rod support, meterstick
and set of masses
Type of Lab: Teacher directed
Allotted time: 90 min

23. Interference
Objectives: To determine the wavelength of two sources of light by using a double-slit and a diffraction grating of known spacing.
Equipment: He-Ne Laser, slits and meterstick
Type of Lab: Open ended
Allotted time: 50 min

24. Index of Refraction
Objectives: To determine the index of refraction of an acrylic block
Equipment: Optics bench, ray table, light source and acrylic block
Type of Lab: Open ended
Allotted time: 30 min

25. Mirrors and Lenses
Objectives: This lab is divided into two sections:
1. Using a concave mirror, determine two locations where a magnified image can
be formed.
2. Determine the focal length of a converging lens directly and the focal length of
a diverging lens by combining it with a converging lens.
Equipment: Optics bench, set of lenses and mirrors, light source
Type of Lab: Open ended
Allotted time: 50 min

26. Photoelectric Effect
Objectives: To calculate the value of Planck's constant.
Equipment: LED Color strip, 9V battery, voltmeter, meter stick, diffraction grating
of known slit spacing
Type of Lab: Teacher directed
Allotted time: 50 min

27. Spectroscopy
Objectives: To make qualitative observations of the different spectra of a variety
of light sources.
Equipment: Spectroscope and various sources of light
Type of Lab: Teacher directed
Allotted time: 30 min