Refer to http://bit.ly/2uguhSa Lab handout for answers Coplanar Forces Prelab Qu
ID: 1631371 • Letter: R
Question
Refer to http://bit.ly/2uguhSa Lab handout for answers
Coplanar Forces Prelab Quiz
QUESTION 1
Before using the force table, you should make sure it is level in...
a. 1 dimension
b. 2 dimensions
c. 3 dimensions
d. No reason to level it because it should already be leveled.
e. No reason to have it leveled as long as the system is in equilibrium
QUESTION 2
The purpose of the tension protractor apparatus is to (multiple answers may apply)
a. visualize equilibrium on an object under multiple forces
b. demonstrate the use of pulleys with multiple forces.
c. visualize forces by different length of string.
d. demonstrate the vector nature of forces.
QUESTION 3
The purpose of the force table is to (multiple answers may apply)
a. demonstrate the use of pulleys with multiple forces.
b. visualize equilibrium on an object under multiple forces.
c. visualize forces by different length of string.
d. demonstrate the vector nature of forces.
QUESTION 4
In procedure 1, which relationship between the forces created by the hooks is correct? (Refer to http://bit.ly/2uguhSa page 3)
a. F1 + F2 = F3
b. F1 + F2 + F3 = 0
c. F2 + F3 = F1
d. F1 + F3 = F2
QUESTION 5
If you see the tension protractor is not zeroed properly, you should set the zero by
a. turn the setscrew behind the protractor until it reads zero.
b. loosen the setscrew behind the protractor and the turn the protractor until it reads zero.
c. turn the protractor wheel until it reads zero.
d. adjusting the horizontal bar until the scale reads zero.
a. F1 + F2 = F3
b. F1 + F2 + F3 = 0
c. F2 + F3 = F1
d. F1 + F3 = F2
Explanation / Answer
for ques. 1
correct answer is B
that 2 dimension
Explaination
before using the force table , we should level it on the horizontal plane so that bubble placed in the center.
and horizontal plane is of 2 dimension.
hence, we are levelling it in 2 dimension.
ques. no. 2
correct answer is A and D
that is visualize equilibrium on an object under multiple forces.
demonstrate vector nature of forces.
ques. no.3
correct answer is B and D
that is to visualize equilibrium on an object under multiple forces.
and to demonstrate the vector nature of forces.
ques. no. 4
correct answer is D
that is F1 + F3 = F2.
explaination
after on setting the hook 1 to 0 degrees and hook 3 to 90 degrees.
we just need to add masses on both these hooks until the weight balances hook 2.