A student drops a basketball into a pool from a height of 5 meters while a friend records the approximate splash height. They want to make a bigger splash in their next trial. How can they achieve this?(1 point)

Responses

They can use a ball with the same diameter but less mass.
They can use a ball with the same diameter but less mass.

They can drop the same ball with less speed.
They can drop the same ball with less speed.

They can drop the same ball from a lower height.
They can drop the same ball from a lower height.

They can use a ball with the same diameter but more mass.

3 answers

To make a bigger splash, the students should aim to increase the energy of the falling ball upon impact with the water. The impact energy is largely influenced by the height from which the ball is dropped and its mass.

Given the options:

  • Using a ball with the same diameter but less mass: This would decrease the impact energy, leading to a smaller splash.
  • Dropping the same ball with less speed: This would also reduce the impact energy and lessen the splash.
  • Dropping the same ball from a lower height: This would lower the potential energy and yield a smaller splash.
  • Using a ball with the same diameter but more mass: This would increase the impact energy, leading to a bigger splash.

The best choice for achieving a larger splash would be:

They can use a ball with the same diameter but more mass.

A student drops several objects of the same size into a bucket of water from a height of 2 meters. She ranks the splash size from 1-4, with 1 being the smallest splash and 4 being the largest splash. Which object most likely has the greatest mass?

(1 point)
Responses

object Y
object Y

object Z
object Z

object W
object W

object X

To determine which object most likely has the greatest mass based on the splash size rankings, we should consider that greater mass typically results in a larger splash when dropped from the same height. The greater the mass, the more energy is transferred to the water upon impact, thus creating a bigger splash.

Given that the student ranked the splash sizes from 1 (smallest) to 4 (largest), the object that corresponds to the ranking of 4 most likely has the greatest mass.

Without specific information about the rankings of objects X, Y, Z, and W in relation to their splash sizes, it is impossible to determine conclusively which object has the greatest mass. However, you would choose the object that was ranked as a 4 for the largest splash size.

If you know which object is ranked as 4, that would be the object with the greatest mass.