Question

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the piston of a shock absorber moves through oil in order to damp the motion of the cars chassis when it hits a bump. holes in the piston head allow the oil to flow through it. suppose the oil gets \stiffer\ when it gets cold outside. which one of the following do you expect in cold weather?
the degree of damping will decrease (the car will oscillate more when it hits bumps)
the degree of damping will be greater (the car will oscillate less when it hits bumps)
the degree of damping will be the same (your ride will be the same as in warm weather)

Explanation:

When the oil gets "stiffer" (more viscous) in cold weather, it offers more resistance to the piston's motion. Greater resistance means more damping. Damping reduces oscillations. So, the car will oscillate less when it hits bumps.

Answer:

The degree of damping will be greater (the car will oscillate less when it hits bumps)