59

Written Assignment 2

 

 

Physics 1 – PHY-111

Semester and year:

 

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:

 



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 an 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.                  Answer the following questions:

 

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?

 

 


Question Field

Asked by macevedo
4 years ago
NO ANSWERS YET
RELATED QUESTIONS
359 Rank 1213 Views
 Astron 4a

Asked by kimberlytaylor 3 years ago

974 Rank 623 Views
 Physics Lab

Asked by manderson 3 years ago

820 Rank 1268 Views
 Physic Lab Report

Asked by howellmartin 3 years ago

302 Rank 769 Views
 No Title

Asked by rachelbaker 3 years ago

37 Rank 351 Views
 Exam Physics

Asked by cglenn 3 years ago

415 Rank 379 Views
 Module 2 (2)

Asked by alexis81 3 years ago

777 Rank 256 Views
 No Title

Asked by george19 3 years ago

41 Rank 1045 Views
 Physics Report

Asked by david36 3 years ago

326 Rank 319 Views
 One Week Of Class Content

Asked by bholt 3 years ago