13. Momentum, (J)impulse, and 1D Collisions.

Question 1

Define and Encode Momentum

Answer 1

Momentum is really just a measure of how hard it is going to be to stop a moving object, and back in the ancient days, apparently, momentum is spelled with p; hence, p(momentum) = mv. The unit of momentum is kgm/s

Question 2

Define and Encode Impulse

Answer 2

Impulse can either be a force applied for a period of time or it can be also be a change in momentum.

Question 3

What is the equation of impulse? Encode.

Answer 3

J (with arrow on the top) = ∆p or Ft

Question 4

What is the equation of momentum? Encode.

Answer 4

p = mv

Question 5

Differentiate impulse and momentum

Answer 5

Impulse is the thing that you do, while momentum is the thing that you see.

Question 6

If the impulses are equal then…

Answer 6

The momentums are also equal, momentums are conserved.

Question 7

Differentiate the conservation of momentum and kinetic energy in all collisions (elastic collisions and inelastic collisions).

Answer 7

Momentums is conserved in all collisions, while kinetic energy is conserved in elastic collision but not conserved in inelastic collisions.

Question 8

What is the equation for Elastic collisions? Encode.

Answer 8

[i] mv1 + mv2 = [f] mv1 + mv2

Question 9

What is the equation for inelastic collisions? Encode

Answer 9

[i] mv1 + mv2 = [T] mv