Elasticity
Q. Which of the following materials typically has the highest Young's modulus?
-
A.
Rubber
-
B.
Steel
-
C.
Wood
-
D.
Plastic
Solution
Steel typically has a much higher Young's modulus compared to rubber, wood, and plastic.
Correct Answer: B — Steel
Learn More →
Q. Which of the following materials would have the highest Young's modulus?
-
A.
Rubber
-
B.
Steel
-
C.
Wood
-
D.
Plastic
Solution
Steel has a much higher Young's modulus compared to rubber, wood, and plastic, indicating it is much stiffer.
Correct Answer: B — Steel
Learn More →
Q. Which of the following statements about elastic potential energy stored in a stretched wire is true?
-
A.
It is proportional to the square of the extension
-
B.
It is proportional to the extension
-
C.
It is independent of the material
-
D.
It is always constant
Solution
The elastic potential energy stored in a stretched wire is given by U = (1/2) * F * x, which is proportional to the square of the extension.
Correct Answer: A — It is proportional to the square of the extension
Learn More →
Showing 61 to 63 of 63 (3 Pages)
