Momentum
This is the equation defining momentum.
What is
p=mv
?
The equation for the Moment of Inertia of a particle.
What is I=MR2?
The Equation for Spring Energy
What is
1/2 kx^2
The only significant force in projectile motion (free fall) problems.
What is Gravity?
The three forces that act at a distance (without contact).
What are gravity, electric (or electrostatic), and magnetic?
A mathematical object, like momentum, that contains both a number and a direction.
What is a vector?
the units of angular velocity needed when using v = omega * r.
What are rad/s?
The three types of macroscopic (human scale) potential energy.
What is Gravitational, Elastic (or Spring), and Electric (or Electromagnetic)?
The name of the speed when a falling object's drag and gravitational forces are balanced.
The type of friction with the potential for the greatest strength.
What is Static Friction?
A type of bouncy collision that conserves both linear momentum and kinetic energy.
What is an Elastic Collision?
The direction of the angular velocity vector of a top rotating counter-clockwise (when viewed from above) on a table.
What is vertically upward?
The three major energy transfer mechanisms. (10 Bonus points for each of the three minor energy transfer mechanisms)
What are Work, Heat, and Light?
(Also Waves, Electric Current, and Matter Transfer)
The (all variable) equation for the time to fall a distance h from rest.
What is
t=sqrt((2h)/a)
?
The equation for Static Friction.
What is
F_(SF) <=mu_s F_N
?
The three types of system isolation that lead to Momentum Conservation.
What is Isolated in Space, Functionally Isolated, or Colliding?
The factor difference in angular momentum between a hollow ball rotating every three seconds with a hollow ball twice as wide rotating at the same rate. (Balls have same mass)
What is 4 times larger?
The amount of work done by Gravity on a bowling ball rolling down a bowling lane.
What is zero?
The speed of a vertically launched projectile when it returns to its launch height, as a function of initial velocity v. (ie. "What is 2v?")
What is -1v?
The acceleration of a diagonally thrown ball at the top of its arc.
What is 9.8 m/s^2, downwards?
The answer to: “one 2-kg cart moving at 15m/s in the +x direction collides and sticks to a 5-kg cart moving at 20m/s in the opposite direction, what is their final velocity?”
What is 10 m/s in the -x direction?
The Moment of Inertia of a thin 6kg rod (rotating about it's center) of length 2m.
What is 2 kg m2?
The spring constant of a vertical spring that compresses 1-m when a 1kg object is dropped 1 m above the top of it's uncompressed height.
What is 39.2 N/m?
The horizontal range of an object launched at 10 m/s at an angle of 30°.
What is 8.8m?
The coefficient of friction of an 3kg object pushed with 8N but moving at constant speed.
What is 0.27?