A problem relating the height and velocity of an object.
What is the Law of Conservation of Energy?
E_"initial"=E_"final"
The first thing you check for on any graph.
What are the axes?
The direction of centripetal acceleration.
What is towards the center?
The gravitational potential energy of an object.
What is
U_g=mgh
When perspective matters
What is relative motion?
A formula using acceleration that doesn't include any forces.
What are kinematic formulas?
The area under the curve on this type of graph is defined as work.
What is a F-s graph?
The direction of the normal force when a roller coaster is moving in a vertical circle and the cart is at the top.
What is down?
Rotational Second Law.
What is
tau=Ialpha
Obsessed with trains
Who is Einstein?
A problem that involves any type of collision.
What is the Law of Conservation of Momentum?
(p_1+p_2=p_1'+p_2')
Method to determine the displacement from a velocity-time graph.
What is determine the area under the line?
When the size of a spinning object decreases, this happens to the rotational inertia.
What is decreases?
Rotational kinetic energy.
What is
KE_r=1/2Iomega^2
The ability to make change
What is energy?
A problem that has an object with several forces acting on it.
What is draw a free-body diagram then determine the net force formulas?
A straight horizontal line on a velocity-time graph means the velocity is this.
What is constant?
The proportionality between the force and the distance between two objects.
What is
F_Gpropto1/r^2
Kinematic formula without displacement to solve for final velocity.
What is
v_f=v_0+at
What is how long you should spend on a MC question?
A problem involving a cart moving down a ramp and colliding with another cart at the bottom of the ramp. (note: two parts)
What is the Law of Conservation of Energy THEN the Law of Conservation of Momentum?
Two things you can determine from a displacement vs time graph for an object in SHM.
What is the period (or frequency) and the amplitude (or maximum displacement)?
The change in angular momentum of a satellite change as it moves around a planet in an elliptical orbit.
What is constant? The velocity changes as the satellite moves closer to and farther away from planet to conserve angular momentum and kinetic energy.
The angular momentum of an object.
What is
L=mrv
The formula you never used again
What is Q=mcΔT?