1. 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 drop the same ball with less speed.
They can drop the same ball with less speed.
They can use a ball that has a larger circumference.
They can use a ball that has a larger circumference.
They can use a ball with more mass.
2. Which characteristic will be affected by increasing the speed of an object from 30 mph to 40 mph?(1 point)
Responses
mass
mass
gravitational attraction
gravitational attraction
weight
weight
kinetic energy
3. Use the table of information about a student’s investigation to answer the question.
Object Mass (g) Drop Height (m) Speed (m/s)
A 50 5 20
B 50 5 30
Which question is the student trying to answer?
(1 point)
Responses
Does changing the mass of an object affect its speed?
Does changing the mass of an object affect its speed?
Does changing the height from which an object is dropped affect its mass?
Does changing the height from which an object is dropped affect its mass?
Does changing the kinetic energy of an object affect its mass?
Does changing the kinetic energy of an object affect its mass?
Does changing the speed of an object affect its kinetic energy?
Does changing the speed of an object affect its kinetic energy?
4.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 500-gram rock causes a larger splash because it has more kinetic energy.
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.
The 350-gram rock causes a smaller splash because it has more kinetic energy.
The 350-gram rock causes a larger splash because it has less mass.
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.
5.
Factors that Affect Kinetic Energy Quick Check
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Question
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 throws several objects 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 W
object W
object X
object X
object Y
object Y
object Z
all answers bot i need them all
Potential Energy of a System Quick Check
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Question
Use the picture to answer the question.
The girl in the picture is at the highest point in swinging and starts to come down. Which statement best describes the changes in energy as she begins to descend?
(1 point)
Responses
Kinetic and potential energy are decreasing.
Kinetic and potential energy are decreasing.
Kinetic and potential energy are increasing.
Kinetic and potential energy are increasing.
Kinetic energy is increasing, and potential energy is decreasing.
Kinetic energy is increasing, and potential energy is decreasing.
Potential energy is increasing, and kinetic energy is decreasing.
Potential energy is increasing, and kinetic energy is decreasing.
Kinetic energy is increasing, and potential energy is decreasing.
How would potential and kinetic energy change when going down stairs one at a time versus two at a time?(1 point)
Responses
Going down stairs two at a time will give you twice as much kinetic and potential energy by the time you reach the bottom stair.
Going down stairs two at a time will give you twice as much kinetic and potential energy by the time you reach the bottom stair.
Going down stairs two at a time means you will get down in fewer steps, which saves you some kinetic and potential energy.
Going down stairs two at a time means you will get down in fewer steps, which saves you some kinetic and potential energy.
If you go down stairs two at a time, then your potential energy relative to the stair is greater. Your kinetic energy will be greater when you land.
If you go down stairs two at a time, then your potential energy relative to the stair is greater. Your kinetic energy will be greater when you land.
If you go down stairs two at a time, then you are going a greater distance, which will decrease your potential energy. Your kinetic energy will be less when you land on the stair.
If you go down stairs two at a time, then you are going a greater distance, which will decrease your potential energy. Your kinetic energy will be less when you land on the stair.
whats the anwser
If you go down stairs two at a time, then your potential energy relative to the stair is greater. Your kinetic energy will be greater when you land.
To answer the question, look at the splash size ranking in the table provided. The object with the highest splash size ranking (4) is object X. Therefore, object X most likely has the greatest mass.
object Z
1. They can drop the same ball from a lower height.
2. weight
3. Does changing the speed of an object affect its kinetic energy?
4. The 500-gram rock causes a larger splash because it has more kinetic energy.
5. object Z