Effective measurement techniques include the concept of measurement uncertainty. Students may make …

Effective measurement techniques include the concept of measurement uncertainty. Students may make erroneous conclusions analyzing data using measurements that do not include the uncertainty of the measurement. In this lab, students determine a density range for a metal and identify the material based on this range.

This is a lab activity that allows students to collect data to …

This is a lab activity that allows students to collect data to practice using effective measurement. While other authors have produced similar labs, this version includes uncertainty analysis consistent with effective measurement technique as presented in the module Measurement and Uncertainty.

In this lab-based activity the students will use their knowledge about the …

In this lab-based activity the students will use their knowledge about the law of conservation of energy to explain the loss of heat by warm water to cold water. Then, the students will use these concepts to design and carry an experiment to determine the unknown temperature of a hot water sample.

In this activity about light and perception, learners discover how a flash …

In this activity about light and perception, learners discover how a flash of light can create a lingering image called an "afterimage" on the retina of the eye. Learners will be surprised when they continue to see an image of a bright object after staring at it and looking away. Use this activity to introduce learners to principles of optics and perception as well as to explain why the full moon often appears larger when it is on the horizon than when it is overhead. This lesson guide also includes a few extensions like how to take "afterimage photographs."

Students analyze the motion of a toy airplane on a string using …

Students analyze the motion of a toy airplane on a string using information from the video (a visible force scale, a frame-counter & an overlaid protractor). These measurments allow them to determine the mass and speed of the aircraft as well as the length of the string that constrains it.

The properties of organic molecules depend on the structure, and knowing the …

The properties of organic molecules depend on the structure, and knowing the names of organic compounds allow us to communicate with other chemists. We'll be learning about different aspects of molecular structure, including common functional groups and conformations.

This activity is an indoor lab where students will make predictions of …

This activity is an indoor lab where students will make predictions of what a force vs time and acceleration vs time graph will look like for a ride in an elevator going down and up. Students will collect data remotely using a Force Plate and accelerometer and then download the data to the computer for further analysis.

Ballistic Pendulum is an activity that utilizes the Law of Conservation of …

Ballistic Pendulum is an activity that utilizes the Law of Conservation of Energy and the Law of Conservation of Momentum to determine the velocity of a Peanut M&M that is shot from a cannon into a cup. The activity walks students through the problem step by step to get the outcome, asking conceptual and math problems along the way to obtain the final product: the velocity of the Peanut M&M.

After using the historical development of concepts of conserved motion to develop …

After using the historical development of concepts of conserved motion to develop introductory understanding, students are directed to a series of activities to gain a better understanding of momentum, conservation of momenta, angular momentum, and conservation of angular momenta.

In uniform circular motion, angular velocity (𝒘) is a vector quantity and …

In uniform circular motion, angular velocity (𝒘) is a vector quantity and is equal to the angular displacement (Δ𝚹, a vector quantity) divided by the change in time (Δ𝐭). Speed is equal to the arc length traveled (S) divided by the change in time (Δ𝐭), which is also equal to |𝒘|R. And arc length (S) is equal to the absolute value of the angular displacement (|Δ𝚹|) times the radius (R).

In this demonstration, amaze learners by performing simple tricks using mirrors. These …

In this demonstration, amaze learners by performing simple tricks using mirrors. These tricks take advantage of how a mirror can reflect your right side so it appears to be your left side. To make the effect more dramatic, cover the mirror with a cloth, climb onto the table, straddle the mirror, and then drop the cloth as you appear to "take off." This resource contains information about how this trick was applied during the making of the movie "Star Wars."

In this simple exploration, a coiled phone cord slows the motion of …

In this simple exploration, a coiled phone cord slows the motion of a wave so you can see how a single pulse travels and what happens when two traveling wave pulses meet in the middle.

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