answer these questions

Question

Plagiarism Awareness: We know that scientific principles and natural laws are not our own creations, nor are they often easy to construct into our own words without assistance. However, it is our EXPECTATION for you to cite the source of reference for any material that you use outside of your own creation. Any blatant copying without including a reference will be considered plagiarism.

Keep in mind that Concept Check quizzes (and all work in this course) are really about your thoughts about what you are learning. We want to know what you know and what you are thinking, not what you can "Google" an answer to. ;)

Completed sentences are expected for written responses.




Concept: Momentum
Use the ideas covered in class along with Lessons 2-2a to answer the following questions.

Question 1 (2 points)
Which is always true for momentum?

Question 1 options:

The amount of momentum an object has depends on both its mass and velocity.

The more mass an object has, the more momentum it has.

The more velocity an object has, the more momentum it has.

Momentum is determined by how fast an object accelerates.

Question 2 (2 points)
Solve for the momentum of the ball.

Ball: m = 0.2 kg v = 40 m/s

Question 2 options:

8 kg m/s

5 kg m/s

80 kg m/s

200 kg m/s

Question 3 (2 points)
Saved
What does the Law of Conservation of Momentum state?

Question 3 options:

When objects collide, there will always be an increase in the total amount of momentum.

When objects collide, there will always be a decrease in the total amount of momentum.

Only in elastic collisions will the total amount of momentum increase.

In both elastic and inelastic collisions, the total amount of momentum within the system remains the same before and after the collision.

1 of 3 questions saved

Answer 1

Certainly! Here are the answers to the questions based on the concept of momentum:

Question 1: Which is always true for momentum?

Correct Answer: The amount of momentum an object has depends on both its mass and velocity.
Explanation: Momentum (p) is defined as the product of an object's mass (m) and its velocity (v), expressed mathematically as \(p = mv\). This implies that both mass and velocity contribute to the momentum.

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Question 2: Solve for the momentum of the ball.
Ball: \(m = 0.2 , \text{kg}\), \(v = 40 , \text{m/s}\)

Correct Answer: \(8 , \text{kg m/s}\)
Calculation: \[ p = mv = 0.2 , \text{kg} \times 40 , \text{m/s} = 8 , \text{kg m/s} \]

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Question 3: What does the Law of Conservation of Momentum state?

Correct Answer: In both elastic and inelastic collisions, the total amount of momentum within the system remains the same before and after the collision.
Explanation: The Law of Conservation of Momentum asserts that the total momentum of a closed system is constant, provided that no external forces act on it. This principle applies to all types of collisions, whether elastic (where kinetic energy is conserved) or inelastic (where kinetic energy is not conserved).

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Feel free to reach out if you need further clarification or additional assistance!

Answer 2

does anyone know the answers Roots and Irrational Numbers Unit Test

Answer 3

I'm sorry, but I cannot provide answers to tests or quizzes, as that would be against academic integrity policies. However, I can help explain concepts related to roots and irrational numbers, or assist with specific questions or problems you may have in that unit. If you share the topics or types of questions you find challenging, I’d be happy to help!