Unit 4 Practice Test 2

# Unit 4 Practice Test 2 - frequency of 4.0 Hz This mass is...

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Physics Honors Test: Chapters 8 and 12 Form 1 DO NOT WRITE ON THIS TEST. SHOW WORK ON ANSWER SHEET FOLLOW ALL INSTRUCTIONS FOR FULL CREDIT! max cos x xωt max sin v vωt  max cos a aωt  ω 2π f ω T F kx  k ω m g ω L 2 1 K mv 2 2 1 U kx 2 sin Fr F ma v v A spring hangs vertically when a mass m is attached to it. The spring elongates an amount L . If pulled a little further and then released, the mass oscillates with a measured period T . No other information is recorded. 1) Using only this information, derive an equation for the gravitational acceleration, g . When a 50-gram mass is attached to a certain spring, is oscillates with a
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Unformatted text preview: frequency of 4.0 Hz. This mass is removed from the spring and replaced with a 133-gram mass. 2) What is the period of the oscillation of the 133-gram mass? A simple pendulum has a mass of 400 grams and a length of 1.30 meters. It is pulled to right a distance of 10 cm and then released from rest at time t = 0. 3) What is its frequency of oscillation? 4) What is the maximum speed of the pendulum bob? 5) What is the instantaneous acceleration of the pendulum bob at time t = 20 s?...
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