What's my approach for...
Graphing Graphs
Anything but linear mechanics
Do you know your equations?
Randomised
100
A problem relating the height and velocity of an object.
What is the Law of Conservation of Energy?
E_"initial"=E_"final"
100
The first thing you check for on any graph.
What are the axes?
100
The direction of centripetal acceleration.
What is towards the center?
100
The gravitational potential energy of an object.
What is
U_g=mgh
100
When perspective matters
What is relative motion?
200
A formula using acceleration that doesn't include any forces.
What are kinematic formulas?
200
The area under the curve on this type of graph is defined as work.
What is a F-s graph?
200
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?
200
Rotational Second Law.
What is
tau=Ialpha
200
Obsessed with trains
Who is Einstein?
300
A problem that involves any type of collision.
What is the Law of Conservation of Momentum?
(p_1+p_2=p_1'+p_2')
300
Method to determine the displacement from a velocity-time graph.
What is determine the area under the line?
300
When the size of a spinning object decreases, this happens to the rotational inertia.
What is decreases?
300
Rotational kinetic energy.
What is
KE_r=1/2Iomega^2
300
The ability to make change
What is energy?
400
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?
400
A straight horizontal line on a velocity-time graph means the velocity is this.
What is constant?
400
The proportionality between the force and the distance between two objects.
What is
F_Gpropto1/r^2
400
Kinematic formula without displacement to solve for final velocity.
What is
v_f=v_0+at
400
About 90 seconds
What is how long you should spend on a MC question?
500
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?
500
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)?
500
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.
500
The angular momentum of an object.
What is
L=mrv
500
The formula you never used again
What is Q=mcΔT?