Flipping Physics
Introductory Rotational Equilibrium Problem
A uniform 0.093 kg meterstick is supported at the 15 cm and 92 cm marks. When a 0.250 kg object is placed at the 6.0 cm mark, what are the magnitudes of the forces supporting the meterstick?
Catalyst University
Precision & Calculating ppt [Example 2]
In this video, I do a sample precision problem for calculating parts-per-thousand (ppt).
Flipping Physics
Introductory Tangential Velocity Problem - Mints on a Turntable
Three mints are sitting 3.0 cm, 8.0 cm, and 13.0 cm from the center of a record player that is spinning at 45 revolutions per minute. What are the tangential velocities of each mint?
Catalyst University
The Dixon Q-test | When to Discard Outliers in Your Data
In this video, I show you how to perform a Dixon Q-test on a data set, and how to interpret the Q-values for discarding a data point.
Catalyst University
Quantifying Precision | Calculating a Parts-per-Thousand [ppt]
In this video, I show you how to calculate the quantity, Parts-per-Thousand [ppt], for a data set to determine whether or not your data is precise.
Catalyst University
Dixon-Q Test [Example #2]
In this video, we do a sample problem for the Dixon-Q test.
Flipping Physics
Rounding and Working with Significant Figures in Physics
The Rules of Rounding with several examples and a common mistake. How to use Significant Figures in Physics.
Flipping Physics
Introductory Moment of Inertia and Rotational Kinetic Energy Problem
Three 20.0-gram masses are 9.4 cm from an axis of rotation and rotating at 152 revolutions per minute. What is the moment of inertia of the three-object system? The strings holding the masses are of negligible mass. Rotational Kinetic...
Curated Video
Expressing Numbers in Scientific Notation (Part 1)
Express numbers in scientific notation.
Flipping Physics
Center of Mass of an Irregular Object
How to find the center of mass of an irregularly shaped, flat object.
Flipping Physics
Center of Mass of an Object with a Hole
How to find the center of mass of an object with a missing piece.
Flipping Physics
Introduction to Coulomb's Law or the Electric Force
Coulomb’s Law is introduced and compared to Newton’s Universal Law of Gravitation. “Point Charge” is defined. Micro, Nano, and Pico prefixes are explained. Two basic example problems are solved. And a the fact that the electric force is...
Flipping Physics
A Three Force Example of Newton's 2nd Law with Components
Finding the net force caused by three brothers fighting over a stuffed turtle. We break one vector in to components and find the components of the net force in order to solve for the net force.
Flipping Physics
Introduction to Significant Figures with Examples
The rules of Significant Figures (or Digits) with several examples and a common mistake. Also a few Scientific Notation Examples.
Flipping Physics
Determining the Speed of a Standing Wave - Demonstration
The relationship between wavelength and frequency is determined. The number of waves, wavelength, and wave speed at each standing wave frequency is determined. The wave speed is measured independent from the standing waves.
Flipping Physics
Introductory Centripetal Acceleration Problem - Cylindrical Space Station
A cylindrical space station with a radius of 115 m is rotating at 0.292 rad/s. A ladder goes from the rim to the center. What is the magnitude of the centripetal acceleration at (1) the top of the ladder, (2) the middle of the ladder,...
Flipping Physics
Calculating the Center of Mass of a System of Particles
Three point objects are located at various locations on a Cartesian coordinate system. Mass 1, with a mass of 1.1 kg, is located at (1.0,1.5) m. Mass 2, with a mass of 3.4 kg, is located at (3.0,1.0) m. Mass 3, with a mass of 1.3 kg, is...
Flipping Physics
How Is This Standing Wave Possible?
When standing waves are allowed at 15, 30, and 45 hertz on a string, then we should not see a standing wave pattern at 22 hertz. Yet, we do in this demonstration. This explains why.
Catalyst University
Chemistry Significant Figures (SigFigs) & Operations with SigFigs
In this video, we will explore the following: 1) How to determine the number of significant figures in a number. 2) How do Add and Subtract, while answering with the correct number of significant figures. 3) How do Multiply and Divide,...
Catalyst University
General Chemistry | Heat Capacity (q=smΔT) [Example 1]
Here, we perform a sample calculation for heat capacity in which we solve for heat (q) using q=smΔT.
Flipping Physics
Frequency vs. Period in Simple Harmonic Motion
Frequency, f, is defined and related to Period, T. Two demonstrations are shown and frequency solved for.
Flipping Physics
Angular Accelerations of a Record Player
A record player is plugged in, uniformly accelerates to 45 revolutions per minute, and then is unplugged. The record player (a) takes 0.85 seconds to get up to speed, (b) spends 3.37 seconds at 45 rpms, and then (c) takes 2.32 seconds to...
Flipping Physics
Introductory Perfectly Inelastic Collision Problem Demonstration
A perfectly inelastic collision is demonstrated and analyzed.
Flipping Physics
Wave Speed Equation Derivation and Demonstration
The equation for the speed of a wave is derived. The fact that amplitude, frequency, and wavelength do not affect wave speed is demonstrated. Two different solutions for wave speed are demonstrated.