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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 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.
They can use a ball with the same diameter but more mass.
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.
To achieve a bigger splash in the next trial, they can try dropping the same ball from a higher height.
Which characteristic will be affected by increasing the speed of an object from 30 meters per second (ms
) to 40 meters per second(ms
)?(1 point)
Responses
weight
weight
kinetic energy
kinetic energy
gravitational attraction
gravitational attraction
mass
mass
Increasing the speed of an object from 30 meters per second to 40 meters per second will affect its kinetic energy.
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 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.
They can use a ball with the same diameter but more mass.
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.
Can you pick from the answers listed?
Apologies for the confusion. To make a bigger splash in their next trial, they can use a ball with the same diameter but more mass.
Use the table of information to answer the question.
Fruit Mass (kg) Speed (m/s)
Watermelon A 4 2
Watermelon B 4 4Two watermelons fall off a kitchen counter. The masses and speeds of the fruits are in the table. How do the kinetic and/or the potential energies of the fruits compare?(1 point)
Responses
Both fruits have only potential energy and no kinetic energy.
Both fruits have only potential energy and no kinetic energy.
Both fruits have the same kinetic and potential energy.
Both fruits have the same kinetic and potential energy.
The watermelon A has more kinetic energy.
The watermelon A has more kinetic energy.
The watermelon B has more kinetic energy.
The watermelon B has more kinetic energy.
A student drops a 350-gram rock and a 500-gram rock into a pool from a height of 8 meters. Which statement about the investigation is accurate?(1 point)
Responses
The 350-gram rock causes a smaller splash because it has more kinetic energy.
The 500-gram rock causes a smaller splash because it has more mass.
The 350-gram rock causes a larger splash because it has less mass.
The 500-gram rock causes a larger splash because it has more kinetic energy.