For each of the following scenarios, indicate whether the oscillation period of the block becomes shorter, longer or remains unchanged. Note: you must clearly mark your answer (for example, highlight it in red) from the multiple-choice list below and you must provide an explanation of your answer to receive credit. Review: course textbook (section 9.1).

Question

For each of the following scenarios, indicate whether the oscillation period of the block becomes shorter, longer or remains unchanged.  Note: you must clearly mark your answer (for example, highlight it in red) from the multiple-choice list below and you must provide an explanation of your answer to receive credit.  Review:  course textbook (section 9.1).
a.	The mass of the block is reduced.
i.	Shorter
ii.	Longer
iii.	Unchanged
Explanation:

b.	The spring – mass device is transported to the Moon, where the acceleration due to gravity is weaker.
i.	Shorter
ii.	Longer
iii.	Unchanged
Explanation:

c.	The stiffness of the spring is reduced (i.e., the spring constant is lowered).
i.	Shorter
ii.	Longer
iii.	Unchanged
Explanation:

d.	The amplitude of the oscillation is increased (i.e., the distance the mass travels up and down is increased).
i.	Shorter
ii.	Longer
iii.	Unchanged
Explanation:

Elena · Answer

All explanations on the base of formula for period os spring pendulum T=2πsqrt(m/k) (a) m↓=>T↓ i. Shorter (b) iii. Unchanged (c) k↑↓ => T ii. Longer (d) iii. Unchanged