When you release a yo-yo, gravity acts on its center of mass to pull the yo-yo downward. Because the string of the yo-yo is wrapped around the yo-yo’s axle, and because one end of the string is attached to your finger, the yo-yo is forced to rotate as it drops. If the yo-yo could not rotate, it would not drop.
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How does a yoyo work physics?
It builds linear momentum, which is the momentum to keep going straight up and down, and it also builds angular momentum, which is the momentum to keep rotating. Going up and down, a yo-yo continually cycles between having potential energy and having kinetic energy.
What energy takes place in yoyo?
When the yo-yo is held above the ground, the yo-yo has potential energy from the gravity that is already pulling it down. As the yo-yo falls, that potential energy changes to kinetic energy, which increases as the yo-yo falls down. As the toy climbs back up, the kinetic energy changes back to potential energy.
How do you find the acceleration of a yoyo?
What makes a yoyo come back?
However, a momentary tug on the string causes the friction between the string and the axle briefly to increase so that the axle no longer slips within the string. When the axle thus stops slipping, the angular momentum of the spinning yo-yo is sufficient to cause the string to wind around the axle.
Can all yoyos sleep?
String tension, or how tightly twisted the string is, is very important on fixed axle yo-yos. If the string is twisted too tightly, the yo-yo cannot spin in the loop at the end and will not sleep. But if the string is not twisted tightly enough, the yo-yo will not return.
What are the parts of a yo-yo and how do they work together?
Background. A yo-yo is a toy that has two disks connected together and sandwiching a long string. Traditionally made of wood, the disks are now commonly made of plastic. Attached to the center of the disks, the string winds, unwinds, and rewinds, while attached to a person’s finger.
Is a yoyo a wheel?
A yo-yo – which is a simple wheel and axle machine – is the basis for several compound systems.
Who invented Yoyo?
The first U.S. patent for a yo-yo like toy was issued in 1866, but it was not until 1928, that a Filipino immigrant named Pedro Flores popularized the toy. While working as a porter in a Santa Monica, California hotel, he demonstrated various yo-yo tricks to the guests. Flores made a key innovation in the yo-yo.
In what direction will the yo-yo roll?
This torque is in the opposite direction so the yo-yo rolls clockwise. At any angle between there is a horizontal and vertical component to the force that contribute to the clockwise and counter-clockwise torques respectively.
How do you find the moment of inertia of a yoyo?
Since a yo-yo is approximately a solid cylinder spinning about an axis through its center we can use the following formula to find its moment of inertia: I = 1 2 MR2 where M is the mass and R is the radius of the cylinder. The more mass away from the axis of rotation, the greater the yoyo’s moment of inertia.
What is the increase in the rotational kinetic energy of the yo-yo?
The increase in the rotational energy of the kinetic energy of the yo-yo is, 0.207 J 0.207 textJ 0.207 J.
What kind of energy is a yoyo before it is released?
Potential and kinetic energy When you hold a yo-yo in your hand, it has potential energy: it stores energy because it’s high above the floor. When you release it, the potential energy is gradually converted into kinetic energy (the energy something has because it’s moving).
How do you make a yoyo spin?
Does a yoyo bounce?
When a yo-yo that has a string wrapped tightly around its axle reaches its full extension, it automatically bounces back upwards, the string re-winding in the process.
Why is my yoyo not binding?
This is because there is not enough string for the yo-yo to start the bind. If the distance between the pinched fingers and the yo-yo is too long. The string can become knotted inside the yo-yo. If this happens to you, try throwing the yo-yo a few times to release the knot.
Why can’t I wind my yoyo?
Do yoyos have bearings?
The axle connects the sides of the yo-yo together, and it’s where the string attaches to the yo-yo. As such, the axle and the bearing that goes over it are vital parts of the yo-yo that have a huge affect on the style of play.
What is the longest yoyo sleep?
The SBII holds the record for the longest “sleep”: 3 minutes and 12 seconds. When you open your new yo-yo, you may be tempted to try to jam your finger through the little loop at the end of the string.
Why is my yoyo bearing loud?
The yoyo will become responsive, and/or the bearing will suddenly start making a different noise. This is usually due to dust or hair entering the bearing. It is completely normal and happens quite often.
Why is my yoyo tilting?
What are the 2 types of yoyos?
Yo-yos typically come in three shapes; butterfly, classic and modified.
What is the best material for a yoyo?
Plastic is the material that the majority of yoyos are made of today. Plastic is inexpensive, tough, and easy to make into any shape that you want. So it is a natural choice for making high performance yoyos. You can’t go wrong with a plastic yoyo, really.
What are the two types of yo-yos?
So in yo-yoing today, you basically got two different shapes and three different types of yo-yo’s. The two shapes, which we’ve touched on before, is imperial® shaped, where it’s kind of rounded. And then there’s butterfly shape, where if you put two butterflies together, these are obviously two different yo-yo’s.
Is Yoyo a machine?
Yo–Yo Machines are playful communication devices that you can make yourself. They’re designed to fill a gap by letting people send one another nonverbal, expressive signals like lights, sounds or simple mechanical movements.