
LONG QUIZ GENERAL PHYSICS 1
Authored by Kent Destajo
Physics
12th Grade
Used 14+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
A 4.00 kg uniform solid cylinder is rotated about its central axis. If its moment of inertia is 0.218 kg⋅m2, determine the radius of the cylinder.
I = 2.3 kg⋅m2
I = 6.1 kg⋅m2
I = 1.6 kg⋅m2
I = 0.5 kg⋅m2
2.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
A 4.00 kg uniform solid cylinder is rotated about its central axis. If its moment of inertia is 0.218 kg⋅m2, determine the radius of the cylinder.
r = 0.330 m
r = 0.872 m
r = 0.0545 m
r = 18.34 m
3.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
Suppose 900 N is applied downwards to one end of a 0.80 m lever which makes a 71° angle with the vertical. Calculate the magnitude of the torque applied on the lever.
720 Nm.
680 Nm.
1125 Nm.
8.88x10-4 Nm.
4.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
An engineer working at the International Space Station plays with a stick. The stick is initially not spinning and is at zero gravity. The engineer measures that the angular momentum of the stick increased from 0 to 10 kg·m2/s for a time interval of 0.5 seconds. How much torque was given by the engineer?
20 N·m
5 N·m
0.05 Nm.
.02 Nm.
5.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
A Ferris wheel engine can provide a torque of 7 ✕ 106 N·m during a startup period of 20 seconds. If the Ferris wheel starts from rest and accelerates during the startup period, how much angular momentum did it gain from its engine?
14.1 ✕ 107 kg·m2/s
3.5 ✕ 105 kg·m2/s
35.0 ✕ 105 kg·m2/s
1.4 ✕ 107 kg·m2/s
6.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
A hungry man rotates a food tray in quest to reach the fine turkey. Suppose that he exerts a force of 3.0 N that is directly perpendicular to the radius of the food tray at a time interval of 0.7 seconds. Given that the initial angular momentum of the food tray is zero, what is the final angular momentum of the food tray after the man applied a torque? The radius of the food tray is 0.3 meters.
0.63 kg·m2/s.
7 kg·m2/s.
0.07 kg·m2/s.
6.30 kg·m2/s.
7.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
An object with a weight of 10 N is suspended at the 0 m end of a 10 N meter stick. Is the system in static equilibrium if a support force is applied at the 25 cm mark?
20.0
0
25.0
0.25
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