Phys 109 Exam 2 Review

Energy

100

K = 1/2 mv²

What is kinetic energy

200

U = mgy

What is gravitational potential energy

300

The total mechanical energy in a system does not change

What is the conservation of energy

400

The elastic potential energy in a system

What is does this equation represent 1/2 k s²

500

The total force over a distance is equal to the change in kinetic energy 

What is the work energy theorem

Momentum

100

P=mv

What is momentum 

200

The change in momentum

Impulse

300

The momentum in a system is unchanged unless there is an external force

what is the conservation of momentum

400

Pool balls bouncing off of each other

an example of elastic collisions

500

F = dp/dt

Newtons second law

Rotation

100

The symbol for angular velocity 

what is w

200

acceleration along the radius

what is radial acceleration

300

acceleration along the path of motion 

what is angular acceleration 

400

Centrifugal force

What is an example of a fictitious force 

500

Causes the particles speed to change during 

What does tangential acceleration do 

Dynamics

100

The equation for friction

f = u*n

200

The three kinds of friction

What are kinetic friction, static friction, and rolling friction.

300

Newtons third law of motion

Every action occurs as an action-reaction pair of forces

400

To objects constrained together such as two blocks connected by rope where one is resting on a surface and the other is hanging over the edge of said surface. 

What makes two objects have the same acceleration

500

The equation for the drag force

F_d=1/2 pv²C_dA 

Misc

100

something with magnitude and direction

What is a vector

200

F_net=ma

Newtons second law

300

Kinematic equation used to find the distance something has traveled  

What is x_f = x_i + v_it + 1/2 a t²

400

The equation for spring force

F = k s

500

The infinite sum of the gravitational force over some distance

Gravitational potential energy