moment of inertia
- In stock with stable lead times — single units or complete sets
- Size, appearance and interaction can be adapted to the museum’s theme
- For science museums, campus science rooms, community science centers and mobile science museums
- Export packing and overseas on-site installation support
Moment of inertia/Faster rotation/Angular momentum - Science Museum exhibitions exhibition items scheme
What It Shows
This exhibition (Faster Rotation, Angular Momentum) guides the audience to further understand and comprehend the relationship between the speed of object rotation and the distribution of mass relative to the axis of rotation through interactive forms, stimulating curiosity and exploration.
source factory of science museum exhibits - Shanghai Inertia Automation Co., Ltd. The science museum exhibition items consist of rotating components, a platform, guardrails, seats, etc. When the audience sits on the platform seat and starts turning the handwheel, the platform rotates accordingly. If the slider on the handle is released and moved towards the middle of the handle, the rotation speed of the platform will increase compared to before. Moving the slider back to both ends of the handle will decrease the speed of the platform.
Science Behind It
The law of conservation of angular momentum is one of the universal laws in physics, reflecting the universal laws of motion of particles and particle systems around a point or axis; The universal law of motion of particles and particle systems around a point (or axis) that reflects the fact that the resultant moment of a point (or axis) is always equal to zero when not subjected to external forces or when subjected to external forces.
source factory of science museum exhibits - Shanghai Inertia Automation Co., Ltd. If the external torque is zero (i.e. M external=0), then L1=L2, that is, L=constant vector. This means that for a fixed point o, the particle is
If the combined external torque is zero, the angular momentum vector of this particle remains unchanged, and this conclusion is called the law of conservation of angular momentum of particles.
The law of conservation of angular momentum, also known as the moment of momentum theorem, is a theorem used to describe the relationship between angular momentum and torque. For a particle, the angular momentum theorem can be expressed as follows: the derivative of the angular momentum of a particle at a fixed point over time is equal to the moment of the force acting on the particle at that point. For a system of particles, due to the fact that the internal forces of the interactions between particles within it follow Newton's third law, the principal moment of the internal forces of a system of particles at any point is zero. source factory of science museum exhibits - Shanghai Inertia Automation Co., Ltd. By utilizing the characteristic of internal force, we can derive the angular momentum theorem of a particle system: the derivative of the angular momentum of a particle system at any fixed point O over time is equal to the vector sum of the moments of the external forces acting on the particle system at point O. From this, it can be seen that the angular momentum describing the overall rotation characteristics of a particle system is only related to the external forces acting on the particle system, and the internal forces cannot change the overall rotation of the particle system.
How to Take Part
1. Sit on the seat, press the pedal, and turn the handwheel;
When the turntable rotates to a certain speed, move the counterweight slider inward or outward to feel the change in turntable speed.
form of expression
Model interaction
video demonstration
