Physics

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.

A derivation of a new motion equation.

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.

How fast was the ball that you threw upwards?

More on the ball throwing game.

How high did the ball go?

A little leftover from part 7.

Another example of projectile motion.

Some more examples with projectile motion.

Using vectors to solve 2 dimensional projectile motion problems.

More on 2 dimensional projectile motion.

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 Projectile Part 1.

Optimal angle for a projectile part 2 - Hangtime.

Horizontal distance as a function of angle (and speed).

Optimal Angle for Projectile Part 4.

Introduction to newton's first law of motion. Inertial frames of reference.

An introduction to Newton's Second Law of Motion.

Intuition behind Newton's Third Law of Motion.

Examples of exercises using Newton's laws.

A couple of more examples involving Newton's Laws.

A problem involving a braking train.

Using vectors to determine the horizontal acceleration when force is applied at an angle.

Another example of using our trigonometry skills to break up a force vector into its x (horizontal) and y (vertical) components.

An introduction to tension. Solving for the tension(s) in a set of wires when a weight is hanging from them.

A slightly more difficult tension problem.

Finding the normal and parallel components of the gravitational force vector to determine the acceleration of a block down a frictionless inclined plane. See next video for correction on definition of normal force.

Correction of definition of "normal force" and an introduction to the coefficient of friction.

Calculating the acceleration of on object sliding down an inclined plane with friction.

Fun with two masses, some wire, a pulley, and a ramp with friction.

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.

What happens when we pull on a pulley and the pulley is pulling on other things?

Second part of what happens when we pull on a pulley.

What momentum is. A simple problem involving momentum.

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.

Introduction to work and energy.

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 mechanical advantage, levers and moments.

Introduction to pulleys and wedges.

Introduction to the center of mass.

An introduction to torque.

Introduction to moments.

2 more moment problems.

Expressing a vector as the scaled sum of unit vectors.

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.

Determining the position vector as a function of time.

Let's see if the ball can clear the wall.

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.

Visual proof that centripetal acceleration = v^2/r.

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.

A little bit on gravity.

A little bit more on gravity.

Introduction to Hooke's Law.

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).