Factors that Affect Kinetic Energy Quick Check

Question

Science 8 Q1 / Energy of Motion

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 with less speed.

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

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 (ms) to 40 meters per second(ms)?(1 point)
Responses

weight

gravitational attraction

mass

kinetic energy

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 the same kinetic and potential energy.

The watermelon A has more kinetic energy.

Both fruits have only potential energy and no 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 larger splash because it has less mass.

The 500-gram rock causes a smaller splash because it has more mass.

The 500-gram rock causes a larger splash because it has more kinetic energy.

The 350-gram rock causes a smaller splash because it has more kinetic energy.

Use the table of information from a student's investigation to answer the question.

Object Splash Size Ranking
W 2
X 4
Y 1
Z 3
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 Z

object W

object X

what is the correct answer ot all 5 questions

Answer 1

1. They can use a ball with the same diameter but more mass.
2. kinetic energy
3. The watermelon B has more kinetic energy.
4. The 500-gram rock causes a larger splash because it has more kinetic energy.
5. object Z

Answer 2

The first bot is correct except for the last question which is object X!