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Linear, Rotational, Translation, Rotation, Vibration

Authored by Charles Martinez

Physics

10th - 12th Grade

NGSS covered

Linear, Rotational, Translation, Rotation, Vibration
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45 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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As shown above, a rod with a length L is free to rotate about point A. An external force F is applied perpendicular to the rod. In which of the following cases is the torque on the rod the same as the above?

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Tags

NGSS.HS-PS2-1

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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Two masses of mass 10.0 and 6.0 kg are hung from massless strings at the end of a light rod. The rod is virtually weightless. A pivot (fulcrum) is placed off center and the system is free to rotate. If the 6.0 kg mass is 4.0 m away from the pivot, how far away is the 10.0 kg mass if the system is not rotating?

0.42 m

2.4 m

4.8 m

4.2 m

Tags

NGSS.HS-PS2-1

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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1. Which of the following must be true for the system of two concentric massless pulleys and two masses shown in the picture for the system to be at equilibrium?

m1 = m2

m1R1 = m2R2

m1R2 = m2R1

m1R12 = m2R22

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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Two wheels are fixed to each other and are free to rotate about a frictionless axis through their concentric centers. Four forces are exerted tangentially to the wheels. The magnitude of the net torque is:

zero

FR

2FR

4FR

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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Two wheels are fixed to each other and are free to rotate about a frictionless axis through their concentric centers. Four forces are exerted tangentially to the wheels. As a result of the net torque on the wheels, the wheels will rotate-

clockwise

counterclockwise

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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Where should another 4 N force be applied to maximize the net torque on the object?

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7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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A seesaw is unbalanced with two people of different masses sitting equal distances from the center. Which of the following will result in equilibrium?

The larger person moving further away from the center.
Moving the smaller person closer to the center.
Moving the smaller person further from the center.
Making the larger person do nothing.

Tags

NGSS.HS-PS2-1

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