Define momentum.

Momentum ( $\vec{p}$ ) is a measure of how much 'oomph' an object has in its motion. It's the product of an object's mass (m) and its velocity ( $\vec{v}$ ): $\vec{p} = m\vec{v}$

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Define momentum.

Momentum ( $\vec{p}$ ) is a measure of how much 'oomph' an object has in its motion. It's the product of an object's mass (m) and its velocity ( $\vec{v}$ ): $\vec{p} = m\vec{v}$

What is impulse?

Impulse ( $\vec{J}$ ) is the change in momentum of an object. It's also the product of the average force ( $\vec{F}_{avg}$ ) acting on an object and the time interval ( $\Delta t$ ) during which the force acts: $\vec{J} = \vec{F}_{avg} \Delta t = \Delta \vec{p}$

What are the units for momentum?

kg⋅m/s

What are the units for impulse?

N⋅s (which is equivalent to kg⋅m/s)

What is linear momentum?

Momentum for objects moving in a straight line.

What is angular momentum?

Momentum for rotating objects.

What are the differences between linear and angular momentum?

Linear Momentum: For objects moving in a straight line. | Angular Momentum: For rotating objects.

What are the differences between elastic and inelastic collisions?

Elastic Collisions: Kinetic energy is conserved (objects bounce off each other). Momentum is always conserved. | Inelastic Collisions: Kinetic energy is NOT conserved (objects stick together or deform). Momentum is still conserved.

What is the effect of a force acting on an object over a period of time?

It causes a change in the object's momentum (impulse).

What happens to the total momentum in a closed system?

The total momentum remains constant (conservation of momentum).

What is the effect of expelling fuel with speed $v$ at rate $\frac{\Delta m}{\Delta t}$ on a rocket?

The rocket experiences a thrust force.