Sophia Learning
Sophia: Separation Punctuation
This website provides information about how to use separation punctuation. There is a video clip [0:47] on why periods go inside quotation marks, and a second video clip [1:07] showing the effects of using too many exclamation points.
Yale University
Open Yale Courses: Physics 200: Simple Harmonic Motion
This lecture on simple harmonic motion includes descriptions of amplitude, frequency and period. The lecture comes in several formats including video, audio and transcript.
Texas Instruments
Texas Instruments: Sine and Cosine Graphs
This activity will help students identify the amplitude, period and shifts of graphs of sine and cosine using the TI-Navigator.
University of Maryland
Thinking Problems in Oscillations and Waves: Pendulum
A series of thought-intensive, multichoice questions concerning pendulums and provided for by the University of Maryland. A downloadable software program on pendulums is also included.
Physics Classroom
The Physics Classroom: Mathematics of Satellite Motion
The mathematics associated with the motion of satellites is described. Equations (for period, velocity, acceleration and force) are stated, symbols described, and sample problems solved. Includes five practice problems with solutions and...
Physics Classroom
The Physics Classroom: Kepler's Three Laws
The three laws of planetary motion as described by Kepler are stated and elaborated upon. Useful graphics and an easy-to-understand language are used to explain the nature of planetary motion. Both conceptual and mathematical. Includes a...
Analyze Math
Analyze Math: Periodic Functions
The interactive tutorial examines periodic functions. Learners use the applet to manipulate the shape, period, and shift of periodic functions.
University of Ottawa (Canada)
University of Ottawa: End Punctuation
Resourceful site which includes information about periods, question marks, and exclamation marks. Also provides examples and addresses abbreviation rules for periods.
Khan Academy
Khan Academy: Period of Sinusoidal Functions From Equation
Given the formula of a sinusoidal function, determine its period. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Physics Aviary
Physics Aviary: Practice Problems: Timed Vertical Oscillation Problem
Find the period and frequency of an object oscillating on a spring. You will do this by timing enough oscillations to minimize your error to a low value. You will also use the frequency to find the spring constant of the spring based on...
Physics Aviary
Physics Aviary: Practice Problems: Wave Properties From Graph 2
Determine the period, frequency and amplitude of the wave that produced the position vs. time graph shown below.
Physics Aviary
Physics Aviary: Practice Problems: Finding Speed of a Satellite
Students must determine speed of a satellite by timing the satellite for part of its orbit. Students must also determine the period of the orbit based on their timing.
Physics Aviary
Physics Aviary: Practice Problems: Orbital Motion of a Satellite
Students must calculate the period of a satellite moving around one of the bodies in our solar system.
Other
Sandhills Community College: Punctuation Guide
Lists, defines and describes the uses of many elements of English punctuation, including the period, comma, semicolon, colon, apostrophe, quotation, hyphen, and dash. Includes several examples.
Purple Math
Purplemath: Trigonometric Functions and Their Graphs
Explains the horizontal forms of trigonometric graphs by showing how they relate to the circular graphs.
Physics Aviary
Physics Aviary: Quick Circular Motion Calculations Challenge
This challenge is designed to help students move back and forth from different circular motion ideas. These ideas include frequency, rpm, period, angular speed, linear speed, total distance and total radians.
Physics Aviary
Physics Aviary: Read the Oscilloscope Challenge
Practice reading an oscilloscope. Students must achieve a score or 10 or more. At the end students should be able to get frequency, period, voltage and peak to peak voltage.
Physics Classroom
The Physics Classroom: Properties of Periodic Motion
In Physics, a motion that is regular and repeating is referred to as a periodic motion. Most objects that vibrate do so in a regular and repeated fashion; their vibrations are periodic. Learn more here about periodic motion and take the...
Illustrative Mathematics
Illustrative Mathematics: F Tf Hours of Daylight 1
In order to determine how effective solar panels would be at various times of the year, it is important to know the amount of daylight at a given location. Students are asked to find an appropriate function that serves as a mathematical...
Georgia State University
Georgia State University: Hyper Physics: Transverse and Longitudinal Waves
The physics tutorial illustrates and explains the distinction between transverse and longitudinal waves. Related links provided.
Turtle Diary
Turtle Diary: Sentence Structure Games
A collection of games for students to work on forming sentences. These games give students strategies for sentence formation.
Purple Math
Purplemath: Graphing Trigonometric Functions
This resource explains how to relate constants in trigonometric function to amplitudes, vertical shifts, periods, and horizontal or phase shifts with the help of many solved examples for various trigonometric functions.
CK-12 Foundation
Ck 12: Trigonometry: Amplitude, Period, and Frequency
[Free Registration/Login may be required to access all resource tools.] Combine calculations for amplitude and period on a sine or cosine graph.
CK-12 Foundation
Ck 12: Earth Science: Geologic Time Scale
[Free Registration/Login may be required to access all resource tools.] How the geologic time scale is divided.