Module 9: Momentum

Question 1

What is the Law of Momentum Conservation?

Answer 1

When the sum of the forces working on a system is zero, the total momentum in the system cannot change.

Question 2

What is Recoil Velocity?

Answer 2

The velocity that an object develops in response to launching another object, which is a result of the Law of Momentum Conservation.

Question 3

What is Angular Velocity?

Answer 3

The rate at which the position angle of an object changes in rotational motion.

Question 4

What is the Law of Angular Momentum Conservation?

Answer 4

If the sum of the torques on a system is equal to zero the angular momentum never changes.

Question 5

What is the momentum equation?

Answer 5

p = m*v

p —> Momentum vector
m —> Mass of the object
v —> Velocity Vector

Question 6

What is the ‘change in momentum’ equation?

Answer 6

F = Δp/Δt

F —> Total force in the scenario
Δp —> Change in momentum
Δt —> Change in time

Question 7

What is the impulse equation?

Answer 7

Δp = F*Δt