A8 Momentum, Impulse, Force vs Time Graphs

what is definition of momentum?

measure of mass in motion

what is the formula for momentum?

mv

what letter normally represents momentum in physics?

P

what is the formula for force (in the scope of momentum)?

change in momentum/change in time

what type of quantity is momentum?

vector

what does impulse-momentum theorem state?

impulse equals net external force applied times time

what is the unit for momentum?

kilogram meters per second

what is the unit for impulse?

newton seconds

what is the area under a force time graph represent?

impulse

what does slope of a force time graph represent?

change in force over time

what is the condition for conservation of momentum?

no external force

closed system means that there are…

no external forces

kinetic energy will either (2 cases)

stay the same or decrease

when two bodies in a system stick together after collision, the collision is called a…

perfectly inelastic collision

what type of collision is kinetic energy not conserved?

inelastic

what type of collision where kinetic energy is conserved?

elastic

if there is no external force on a center of mass, what two variables associated with it will not change?

velocity and acceleration