Who Runs Faster
Dimensions: Transport dimensions: 540×440×640mm, Display dimensions: 540×440×1450mm. Composition: Consists of an ABS plastic molded box, an ABS plastic molded base, an ABS milky white plastic molded operation surface with a color silk-screened flip-up instruction board, an acrylic track, two rollers of the same material but different mass distribution (equal mass but different distribution), a roller release device, etc. Scientific Principle: The two wheels have the same mass and size, but the positions of the counterweights on the wheels are different, so their mass distributions are different. According to the characteristics of moment of inertia, when the mass is the same, the closer the mass distribution is to the axis of rotation, the smaller the moment of inertia, the easier it is to rotate around the axis, and the faster the speed. When a ballet dancer spins, adjusting the speed by opening and closing the arms is an application of the principle of moment of inertia. When the mass is the same, the closer the mass distribution is to the axis of rotation, the smaller the moment of inertia, the easier it is to rotate around the axis, and the faster the speed. Operation: Move the two wheels to the top of the track; turn the handle to make both wheels roll down simultaneously; guess which wheel will reach the finish line first.
Options
- China Science and Technology Museum Standard Edition CSTM Standard EditionDimensions: Transport dimensions: 540×440×640mm, Display dimensions: 540×440×1450mm. Composition: Consists of an ABS plastic molded box, an ABS plastic molded base, an ABS milky white plastic molded operation surface with a color silk-screened flip-up instruction board, an acrylic track, two rollers of the same material but different mass distribution (equal mass but different distribution), a roller release device, etc. Scientific Principle: The two wheels have the same mass and size, but the positions of the counterweights on the wheels are different, so their mass distributions are different. According to the characteristics of moment of inertia, when the mass is the same, the closer the mass distribution is to the axis of rotation, the smaller the moment of inertia, the easier it is to rotate around the axis, and the faster the speed. When a ballet dancer spins, adjusting the speed by opening and closing the arms is an application of the principle of moment of inertia. When the mass is the same, the closer the mass distribution is to the axis of rotation, the smaller the moment of inertia, the easier it is to rotate around the axis, and the faster the speed. Operation: Move the two wheels to the top of the track; turn the handle to make both wheels roll down simultaneously; guess which wheel will reach the finish line first.
Dimensions: Transport dimensions: 540×440×640mm, Display dimensions: 540×440×1450mm. Composition: Consists of an ABS plastic molded box, an ABS plastic molded base, an ABS milky white plastic molded operation surface with a color silk-screened flip-up instruction board, an acrylic track, two rollers of the same material but different mass distribution (equal mass but different distribution), a roller release device, etc. Scientific Principle: The two wheels have the same mass and size, but the positions of the counterweights on the wheels are different, so their mass distributions are different. According to the characteristics of moment of inertia, when the mass is the same, the closer the mass distribution is to the axis of rotation, the smaller the moment of inertia, the easier it is to rotate around the axis, and the faster the speed. When a ballet dancer spins, adjusting the speed by opening and closing the arms is an application of the principle of moment of inertia. When the mass is the same, the closer the mass distribution is to the axis of rotation, the smaller the moment of inertia, the easier it is to rotate around the axis, and the faster the speed. Operation: Move the two wheels to the top of the track; turn the handle to make both wheels roll down simultaneously; guess which wheel will reach the finish line first.
- Optimized Popular Edition Optimized EditionDimensions: Transport dimensions: 540×440×640mm, Display dimensions: 540×440×1450mm. Composition: Consists of an ABS plastic molded box, an ABS plastic molded base, an ABS milky white plastic molded operation surface with a color silk-screened flip-up instruction board, an acrylic track, two rollers of the same material but different mass distribution (equal mass but different distribution), a roller release device, etc. Scientific Principle: The two wheels have the same mass and size, but the positions of the counterweights on the wheels are different, so their mass distributions are different. According to the characteristics of moment of inertia, when the mass is the same, the closer the mass distribution is to the axis of rotation, the smaller the moment of inertia, the easier it is to rotate around the axis, and the faster the speed. When a ballet dancer spins, adjusting the speed by opening and closing the arms is an application of the principle of moment of inertia. When the mass is the same, the closer the mass distribution is to the axis of rotation, the smaller the moment of inertia, the easier it is to rotate around the axis, and the faster the speed. Operation: Move the two wheels to the top of the track; turn the handle to make both wheels roll down simultaneously; guess which wheel will reach the finish line first.
Dimensions: Transport dimensions: 540×440×640mm, Display dimensions: 540×440×1450mm. Composition: Consists of an ABS plastic molded box, an ABS plastic molded base, an ABS milky white plastic molded operation surface with a color silk-screened flip-up instruction board, an acrylic track, two rollers of the same material but different mass distribution (equal mass but different distribution), a roller release device, etc. Scientific Principle: The two wheels have the same mass and size, but the positions of the counterweights on the wheels are different, so their mass distributions are different. According to the characteristics of moment of inertia, when the mass is the same, the closer the mass distribution is to the axis of rotation, the smaller the moment of inertia, the easier it is to rotate around the axis, and the faster the speed. When a ballet dancer spins, adjusting the speed by opening and closing the arms is an application of the principle of moment of inertia. When the mass is the same, the closer the mass distribution is to the axis of rotation, the smaller the moment of inertia, the easier it is to rotate around the axis, and the faster the speed. Operation: Move the two wheels to the top of the track; turn the handle to make both wheels roll down simultaneously; guess which wheel will reach the finish line first.