Essay for My Students
INDEX 1. Introduction 2. Precession of a spinning top 3. Torque 4. Angular Momentum 5. Right-Hand rule 6. Linear Momentum 7. A top at rest 8. A top in motion 9. A top slowing down 10. An ideal top 11. A realistic top
Introduction:- We know spinning tops or Beyblades just as simple toys made for kids which spin when we twist the center-stem attached to it .Some are also held by a cord which is wound on it and is then pulled to make the top spin. But all of them spin in a similar fashion. But there is a lot of science associated with it. It is a subject which is used by many students for their Ph.D. Beyblades, now a trend between kids are very much similar to spinning tops .They were originated in Japan. They are very much similar to spinning tops.
Before understanding the physics of a top, we need to understand some important terms related to it,
Precession of a spinning top:- Spin a top on a flat surface, and you will see it 's top end slowly revolve about the vertical direction, a process called precession. As the spin slows, the precission gets faster and faster. It then starts behaving like a drunk Olympic ice skater taking 360 degree turns!
Torque:-
Torque is the tendency of a force to rotate an object about an axis. Just as a force is a push or a pull, a torque can be thought of as a twist to an object. Torque is a measure of the turning force on an object such as a bolt or a flywheel. For example, pushing or pulling the handle of a wrench connected to a nut or bolt produces a torque (turning force) that loosens or tightens the nut or bolt. Usually, the torque acting on a spinning top is just due to the weight of the top. If the top is perfectly upright there is no torque acting on it but if it leans sideways then it will tend to fall over due to the torque about the bottom end. It will indeed fall over if it is not spinning. If
Introduction:- We know spinning tops or Beyblades just as simple toys made for kids which spin when we twist the center-stem attached to it .Some are also held by a cord which is wound on it and is then pulled to make the top spin. But all of them spin in a similar fashion. But there is a lot of science associated with it. It is a subject which is used by many students for their Ph.D. Beyblades, now a trend between kids are very much similar to spinning tops .They were originated in Japan. They are very much similar to spinning tops.
Before understanding the physics of a top, we need to understand some important terms related to it,
Precession of a spinning top:- Spin a top on a flat surface, and you will see it 's top end slowly revolve about the vertical direction, a process called precession. As the spin slows, the precission gets faster and faster. It then starts behaving like a drunk Olympic ice skater taking 360 degree turns!
Torque:-
Torque is the tendency of a force to rotate an object about an axis. Just as a force is a push or a pull, a torque can be thought of as a twist to an object. Torque is a measure of the turning force on an object such as a bolt or a flywheel. For example, pushing or pulling the handle of a wrench connected to a nut or bolt produces a torque (turning force) that loosens or tightens the nut or bolt. Usually, the torque acting on a spinning top is just due to the weight of the top. If the top is perfectly upright there is no torque acting on it but if it leans sideways then it will tend to fall over due to the torque about the bottom end. It will indeed fall over if it is not spinning. If
References: :- www.wikipedia.com www.Bang!Boing!Pop.com www.answers.com www.ehow.com