An introduction to tension. Solving for the tension(s) in a set of wires when a weight is hanging from them.
Introduction to basic physics of motion. Introduces the concept of variable velocity/acceleration.
More on how velocity, distance, acceleration and time relate to each other.
Using the basic equations of distance and velocity to solve motion problems.
Using the equations of motion to figure out things about falling objects.
An example of solving for the final velocity when you know the change in distance, time, initial velocity, and acceleration.
Solving for time when you are given the change in distance, acceleration, and initial velocity.
Using vectors to solve 2 dimensional projectile motion problems.
Completing our first example from parts 1 and 2.
Another example of a 2-dimensional projectile motion problem.
The second part of the last projectile motion problem.
Optimal angle for a projectile part 2 - Hangtime.
Horizontal distance as a function of angle (and speed).
Introduction to newton's first law of motion. Inertial frames of reference.
An introduction to tension. Solving for the tension(s) in a set of wires when a weight is hanging from them.
The second part to the complicated problem. We figure out the tension in the wire connecting the two masses. Then we figure our how much we need to accelerate a pie for it to safely reach a man's face.
A simple conservation of momentum problem involving an ice skater and a ball.
An example of conservation of momentum in two dimensions.
We finish the 2-dimensional momentum problem.
More on work. Introduction to Kinetic and Potential Energies.
Using the law of conservation of energy to see how potential energy is converted into kinetic energy.
A conservation of energy problem where all of the energy is not conserved.
Introduction to simple machines, mechanical advantage and moments.
More on unit vector notation. Showing that adding the x and y components of two vectors is equivalent to adding the vectors visually using the head-to-tail method.
Solving the second part to the projectile motion problem (with wind gust) using ordered set vector notation.
Intuition behind what it takes to make something travel in a circle.
More intuition on centripetal acceleration. A simple orbit problem.
How fast does a car need to go to complete a loop-d-loop.
Using calculus and vectors to show that centripetal acceleration = v^2/r.
Angular velocity or how fast something is spinning.
Angular momentum is constant when there is no net torque.
Work needed to compress a spring is the same thing as the potential energy stored in the compressed spring.
A spring, a frozen loop-d-loop and more! (See if you can find the mistake I made and get the right answer!).
Intuition behind the motion of a mass on a spring (some calculus near the end).