Momentum is calculated using the formula:
\[ \text{Momentum} = \text{mass} \times \text{velocity} \]
To determine which situation has the greatest momentum, we should consider both mass and velocity.
- An object with a small mass is moving slowly: Low momentum due to both low mass and low velocity.
- An object with a small mass is moving quickly: Moderate momentum, as the velocity is high, but mass is still small.
- An object with a large mass is moving quickly: High momentum, as both mass and velocity are significant.
- An object with a large mass is moving slowly: Moderate momentum, due to large mass but low velocity.
Among these options, "An object with a large mass is moving quickly" would have the greatest momentum due to the combination of large mass and high velocity.