Be Smart
The Unexpected Measure that Makes the Modern World Tick
All of modern society relies upon a seemingly simple but surprisingly complex unit of measurement: the second. But knowing exactly what a “second” is is more complicated than you might think!
Curated Video
Second Round Interviews: Part 2
In the second part of our two part series, we help break down the differences between first and second round interviews as well as highlight some of the bigger mistakes that can end your hiring chances on the spot.
Curated Video
Second Round Interviews: Part 1
Have you ever arrived home from a job interview feeling like you just cleared a major hurdle only to find out that the company would like you to come back in for another interview? Although daunting, this is a sign the company was...
Curated Video
S-wave
One of two types of seismic wave produced in an earthquake. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce...
Curated Video
SI
SI is the International System of Units. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract concepts and key...
Curated Video
Factpack: Acceleration
In the race to change velocity the fastest, can man-made objects outstrip nature's fastest accelerators? Physics - Forces - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to...
Curated Video
Why Do We Count in Tens?
Find out why our metric system is based on the number ten. Is it the best number to count on? Or could the reason be more biological than mathematical? Maths - Number A Twig Math Film. Reinforce and extend the learning required by the...
Curated Video
Terminal Velocity
If a skydiver jumps out of a plane, when will they stop accelerating? Competing physical forces hold the answer. Physics - Forces - Learning Points. Terminal velocity is the maximum constant velocity. Terminal velocity increases with...
Nahdet Misr Publishing Group
Solving two equations in two variables, one is of first degree and the other is of second degree
Solving two equations in two variables, one is of first degree and the other is of second degree
Curated Video
Columbus’s Second Voyage
Dr. Forrester talks about Columbus’s second voyage to the New World with seventeen ships and a thousand men.
Curated Video
Newton and the Second Law of Motion
Dr. Forrester teaches about Newton’s Second Law of Motion.
Curated Video
Telling Time to the Minute
Mr. Addit reviews telling time by the hour and half-hour. He then explains how to tell time by the minute.
Curated Video
Digital and Analog Clocks
Mr. Addit explains the measurement of time: seconds, minutes, hours, days, and so on. He then compares an analog clock to a digital clock and how each clock tells the time of day.
Curated Video
Time to Talk about Time
Miss Palomine sorts through old photographs and talks about the passage of time. This leads to a description of time and how clocks are used to tell time.
Curated Video
1, 2, 3...
Miss Palomine references day 11’s lesson of order of events to instruct the student to learn the order of numbers: 1, 2, 3. She teaches the student the terms, “first,” “second” and “third.”
Flipping Physics
#21 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about using Newton's 2nd Law to determine the acceleration of a block being pulled at an angle on a level surface.
Flipping Physics
#4 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about using the derivative and Netwon's 2nd Law to determine the time at which the net force on an object is zero.
Flipping Physics
#24 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about what happens to the center of mass of two people standing on a frictionless surface and they push away from one another.
Flipping Physics
#20 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about using Newton's 2nd Law to determine the velocity of two identical stars in a fixed orbit around their mutual center of mass.
Flipping Physics
#19 Mechanics Multiple Choice Solutions - AP Physics C 1998 Released Exam
This problem is about using Newton's 2nd Law and uniformly accelerated motion equations to determine the initial velocity of a falling elevator that is held by a cable.
Flipping Physics
Review of all Mechanics Dimensions - AP Physics C
This is a review of all of the dimensions used in AP Physics C - Mechanics. Okay, maybe it doesn't cover some of the basic dimensions, however, if you don't know that linear velocity is in furlongs per fortnight, then I probably can't...
Flipping Physics
(1 of 2) Mechanics - Review of all Topics - AP Physics C
0:00 Intro 0:38 Vectors vs. Scalars 1:05 The Uniformly Accelerated Motion Equations 2:07 Acceleration 2:42 Velocity 3:03 Derivative and Integral Definitions 4:01 Projectile Motion 4:57 Newton's 2nd Law and Free Body Diagrams 5:41...
Flipping Physics
Mechanics #3 Free Response Question Solutions - AP Physics C 1998 Released Exam
This Free Response Question includes the following concepts: Free Body Diagrams (or Force Diagrams), Static and Kinetic Friction, Tension, Force Normal, Force of Gravity, Newton's Second Law (many times), a Multiple Bock System and a...
Flipping Physics
(2 of 2) Mechanics - Review of all Topics - AP Physics C
0:00 Intro 0:11 Circular Motion: Angular Velocity and Angular Accleration 0:37 Circular Motion: Centripetal Acceleration 0:56 Circular Motion: Arc Length, Tangential Velocity and Tangential Acceleration 1:58 Torque 2:24 Net Torque in...