MOMENTUM

Question 1

what is momentum

Answer 1

the measure of a moving object’s tendency to continue along its present path

Question 2

what is the momentum equation

Answer 2

M = mV

Question 3

what are the units for momentum

Answer 3

kg m/s

Question 4

what happens if an objects mass or velocity is increased to its momentum

Answer 4

its momentum is increased

Question 5

what becomes difficult if an object has very high momentum

Answer 5

increased difficulty in changing its path

Question 6

what type of quantity is momentum

Answer 6

vector

Question 7

what is the momentum of an isolated system described as

Answer 7

momentum of an isolated system is always conserved

Question 8

what are the two types of collision

Answer 8

elastic and non-elastic collisions

Question 9

what are elastic collisions

Answer 9

Objects bounce off each other

Question 10

what are two examples of elastic collisions

Answer 10

collision of rubber balls and collision of gas molecules

Question 11

what is conserved in an elastic collision

Answer 11

Momentum and kinetic energy

Question 12

what is an inelastic collision

Answer 12

Objects stick together upon collision

Question 13

what is conserved in an inelastic collision

Answer 13

Momentum is conserved. Kinetic energy is lost as heat or sound in inelastic collisions

Question 14

how is kinetic energy lost in an inelastic collision

Answer 14

lost as heat or sound in inelastic collisions

Question 15

what is an example of an inelastic collision

Answer 15

collision between truck and car becoming stuck together

Question 16

A 10g bullet is stopped in a block of wood with a mass of 5kg. The speed of the bullet-wood combination immediately after the collision is 0.6m/s. What was the original speed of
the bullet?

Answer 16

Initially, the block is at rest (v2 = 0).
Therefore,
0.01kg x v1 = 5.01kg x 0.6 m/s
v1 = 300.6 m/s

Question 17

What is the collision of isolated objects equation

Answer 17

m1v1i+ m2v2i= m1v1f + m2v2f