unit 6

Question 1

restoring forces

Answer 1

-a force that attempts to bring an object to its equilibrium position
-a force that depends on the position of the object in relationship to its equilibrium position
-acts in the opposite direction or displacement

Question 2

simple harmonic motion

Answer 2

-periodic motion caused by a restoring force
-motion about an equilibrium position
-can be modeled as sinudoidal
-mostly with no friction

Question 3

amplitude (SHM)

Answer 3

max displacement

Question 4

period

Answer 4

T , the amount of time for a complete oscillation (there and back)

Question 5

frequency

Answer 5

f, the # of there and back oscillations per second

Question 6

spring: decrease mass —>

Answer 6

shorter period

Question 7

spring: decrease spring constant —>

Answer 7

increased period

Question 8

pendulum: decrease length —>

Answer 8

decrease period

Question 9

pendulum: mass changes

Answer 9

mass has no affect on pendulum

Question 10

pendulum: increase gravity —>

Answer 10

period decreases

Question 11

max PE is at

Answer 11

max displacement from equilibrium

Question 12

max KE is at

Answer 12

equilibrium (and max velocity)