Momentum is an object's mass in motion. It depends on both the mass and velocity of the object. Impulse is the change in momentum of an object. It is equal to the force applied to the object multiplied by the time for which it is applied.
The key equation to remember is the Impulse-Momentum Theorem: Impulse = Change in Momentum. Mathematically, this is expressed as $F\Delta t = m\Delta v$, where $F$ is force, $\Delta t$ is the change in time, $m$ is mass, and $\Delta v$ is the change in velocity.
Match each term with its definition:
| Term | Definition |
|---|---|
| 1. Momentum | A. The product of force and the time interval over which it acts. |
| 2. Impulse | B. A force acting briefly on an object. |
| 3. Mass | C. The property of matter that resists changes in motion. |
| 4. Force | D. The product of an object's mass and velocity. |
| 5. Impact | E. An interaction that changes the motion of an object. |
Complete the following paragraph using the words provided: force, momentum, impulse, mass, velocity.
The _____ of an object is its _____ in motion. The _____ is the change in _____ of an object. The impulse experienced by the object is equal to the _____ acting on it.
Explain, in your own words, how increasing the time of impact when catching a ball reduces the force you feel. Use the concepts of impulse and momentum in your explanation.
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