Energy
What are the two main types of energy?
What is rotational inertia?
I, tells us how difficult it is to change the angular velocity of an object
What is Momentum?
Mass in Motion!
What day/time is it?
May 14th at 3 pm!
What is the equation for linear kinetic energy?
K=1/2mv2
What is torque
T, it is a twisting force that causes rotation, can be solved by multiplying the force by the distance from the radius.
What is the equation for linear momentum?
p=m*v
Can you use your notes?
YES
What is the equation for linear gravitational potential energy?
Ug=mgh
What is angular speed?
w, how quickly an object rotates
What is the symbol for angular momentum?
L
Yes!
What happens when energy is lost from a system?
Work is done!
Can there be rotational kinetic energy?
Yes! It's formula is K=1/2Iw2
Can momentum be conserved? How so?
Yes! Momentum is conserved when no momentum is lost from the system!
What is the equation for conservation of linear energy?
Ki + Ugi + W = Kf + Ugf
Ms. Maas is spinning on her chair. She sticks her arms and legs out and slows down. Why does this happen?
Because she increased her rotational inertia, so her angular velocity decreased. This is because momentum is conserved while she's spinning in her chair and we use the equation L=I*w