1. 2 points: An elephant and a mouse are running at the same speed . Which has a greater momentum? Explain your answer.

## Step 1<br />Momentum is a physical quantity that is defined as the product of an object's mass and its velocity. This is represented by the formula:<br />### \( p = m \times v \)<br />where \( p \) is momentum, \( m \) is mass, and \( v \) is velocity.<br /><br />## Step 2<br />In this problem, both the elephant and the mouse are running at the same speed, which means their velocities are the same.<br /><br />## Step 3<br />However, the elephant has a greater mass than the mouse.<br /><br />## Step 4<br />Since momentum is directly proportional to mass when velocity is constant, the elephant will have a greater momentum than the mouse.