Purchase Solution

# Mass in metric, mass vs weight, law of motion, net force, vector

Not what you're looking for?

1. Answer the following:

a. What are the units of mass and the units of weight for the metric system?
b. What are the units of mass and the units of weight for the English system?

2. Explain the relationship between the mass and the weight of an object. Is the mass of an object the same on earth and the moon? Are the weights the same on earth and the moon?

3. In your own words, explain Newton's second law of motion and give two examples.

4. How does mass affect the rate of acceleration in free fall:

a. In air?
b. In a vacuum?

5. If the mass of a sliding block is tripled while a constant net force is applied, by how much does the acceleration decrease?

6. Explain the difference between a vector and a scalar quantity. Give at least two examples of different variables that are vector and scalar quantities.

7. Give and example of Newton's third law of motion and explain why it is an example.

8. For each of the following interactions, identify the action and reaction forces:

a. A hammer hits a nail.
b. Earth's gravity pulls down on a book.
c. A helicopter blade pushes air downward.

9. a. If you stand next to a wall on a frictionless skateboard and push the wall with a force of 30 newtons, how hard does the wall push on you?

b. If your mass is 60 kilograms, what is your acceleration?

##### Solution Summary

The mass in metric, mass versus weight, law of motion, net force, vector and accelerations are examined.

##### Solution Preview

Please find the solutions/explanations attached.

1. Answer the following:

a. What are the units of mass and the units of weight for the metric system?
Metric units for mass are grams, kilograms, milligrams, etc. Metric unit of weight is Newton.

b. What are the units of mass and the units of weight for the English system?
Units of mass for the English system are ounce, pound, ton etc. and unit of weight is pound-force.
2. Explain the relationship between the mass and the weight of an object. Is the mass of an object the same on earth and the moon? Are the weights the same on earth and the moon?

Weight W = mg, where m is the mass of an object and is g is the gravitational force.
The mass of an object remains same on earth and moon but there is difference in weights of an object on earth and the moon.
We know that gravity on moon is 1/6 of the gravity on earth.
Thus, the weight of an object on moon will be 1/6 of its weight on earth.
3. In your own words, explain ...

Solution provided by:
###### Education
• BSc, Meerut University
• MSc, Meerut University
• MPhil, Institute of Advanced Studies
• MSc, AIT
###### Recent Feedback
• "Perfect, thank you so much!!! I will definitely request you in the future! You are amazing!"
• "Thank you. "
• "Thank you so much I have two more that I need your help with if your available."
• "Thank you, I was wondering why you rejected me the first time."
• "Thanks again."

##### Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

##### Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

##### The Moon

Test your knowledge of moon phases and movement.

##### Basic Physics

This quiz will test your knowledge about basic Physics.

##### Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.