1. a student drops a basket ball 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?

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

which characteristic will be affected by increasing the speed of an object from 30 meters per second (m/8) to 40 meters a second (m/8)?

weight
mass
gravitational attraction
kinetic energy

The characteristic that will be affected by increasing the speed of an object from 30 m/s to 40 m/s is kinetic energy.

To achieve a bigger splash in their next trial, there are a few factors to consider: mass, height, diameter, and speed. Let's explore each option:

A. They can use a ball with the same but less mass: This option is unlikely to result in a bigger splash because a ball with less mass will have less force upon impact, resulting in a smaller splash height.

B. They can drop the ball from a lower height: This option is also unlikely to result in a bigger splash because dropping the ball from a lower height will reduce the potential energy, leading to less force upon impact and a lower splash height.

C. They can use a ball with the same diameter but more mass: This option has the potential to create a bigger splash. Increasing the mass of the ball while keeping the diameter the same will increase the force upon impact, resulting in a higher splash height.

D. They can drop the same ball with less speed: This option is unlikely to create a bigger splash because reducing the speed at which the ball is dropped will decrease the force upon impact, resulting in a lower splash height.

Therefore, the best option to achieve a bigger splash in their next trial is to use a ball with the same diameter but more mass (option C).