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Ivy Kreiger

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Continue Learning about Physics

What quantity determines the ability of a force to cause rotation?

The quantity that determines the ability of a force to cause rotation is torque. Torque is the measure of how effectively a force causes an object to rotate around an axis or pivot point. It depends on the magnitude of the force applied and the distance from the axis of rotation at which the force is applied.


Do the magnetic reactions which cause aurora borealis affect earths rotation like an electric motor?

No, the magnetic reactions that cause aurora borealis do not affect Earth's rotation like an electric motor. The aurora is a result of solar wind interacting with Earth's magnetic field, creating light displays in the polar regions. Earth's rotation is primarily influenced by gravitational forces, not by magnetic reactions.


How would reversing the wheel's initial direction of rotation affect the result?

Reversing the wheel's initial direction of rotation would cause the wheel to move in the opposite direction. This would result in a change in the overall movement and direction of the wheel.


What does nutation cause to occur in celestial bodies?

Nutation causes a slight wobbling or nodding motion in the axis of rotation of celestial bodies.


Why is anti-clockwise torque positive?

Anti-clockwise torque is considered positive because it causes an object to rotate in the counter-clockwise direction. In physics, the convention is to assign a positive value to any torque that tends to cause a counterclockwise rotation and a negative value to any torque that tends to cause a clockwise rotation. This convention allows for consistency in calculating and analyzing rotational motion.