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Self-production |
한국 |
$10.50 |
$60.00 |
P00000OR |
Select item with details above |
Name | Quantity | Price |
---|---|---|
Goldland Cup Car / Science & Gifted / Parents / After School / Goldberg | 10.5 ( 60.00) |
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Roll a ball to learn gravity, inertia and centrifugal force
Material
Corrugated cardboard, Rubber, Plastic
Components
Main rail, Body rail, Car body, Cup holder, Rail guard, Cup, wheel, wheel axis, White rod, Snap button, Red rubber ring
Goldberg connector.
When the ball from the other device falls into the cup car's cup, the cup car descends.
When the ball from the other device falls into the cup of the cup car, the cup car descends and drops the beads on the auxiliary rail to activate the other device.
It can be used between D-1, D-3 and other devices depending on the situation.
'Cup Car' Principle of Science
Gravity : The force by which objects on the earth are drawn toward the center of the earth.
Inertia : The force by which objects on the earth are drawn toward the center of the earth.
Potential energy by gravity : The property of an object trying to continue in a state of stationary or constant motion unless it is subject to external forces.
Centrifugal force : The force that acts from the center to the outside when an object performs a circular motion.
1 step. Making a car
① Fold the cup car body along the fold line.
② Secure it to the bottom four grooves with snap buttons as shown.
③ Fit two wheel axles to the car body wheel groove.
④ Fix four wheels to the wheel axle.
*When fitting the wheel, use a hammer to pat it lightly.
⑤ Secure the folded cup holder with the snap button.
⑥ Place the cup on the cup holder and secure it with the snap button.
⑦ Connect the assembled car and the cup holder with the white bar and fix it with the red rubber ring.
2 step. Making a main rail
① Fold the main rail along the fold line.
② Secure the front of the main rail (lower side) with the snap button.
③ Assemble by hooking the rear part of the main rail (high side) into the groove.
④ Main rail completed.
3 step. Making auxiliary rail
① Fold the auxiliary rails along the fold line.
② Secure the front and rear parts of the auxiliary rail with snap buttons.
③ Insert the auxiliary rail guard as shown.
*Check the guard height on the right and left.
4 step. Connecting the rails
① Connect main rail and auxiliary rail as shown in the picture.
*The bottom part of the main rail (lower side) and the guard (lower side) of the auxiliary rail must touch each other.
5 step. Operate the cup car
① Lay the cup car's rear wheels in the upper groove of the main rail.
② Try to drop the beads on the cup of the cup car.
③ The cup car descends and lays beads on the auxiliary rail.
6 step. Goldberg device connection
① Align the funnel groove of the D-1 with the cup.
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