How does a catapult essentially work




















A catapult works because energy can be converted from one type to another and transferred from one object to another. When you let go, this stored energy is released, converted into energy of motion and transferred to the missile the launched object , which then flies through the air. Catapult physics is basically the use of stored energy to hurl a projectile the payload , without the use of an explosive.

The three primary energy storage mechanisms are tension, torsion, and gravity. The catapult has proven to be a very effective weapon during ancient times, capable of inflicting great damage. A catapult is a type of simple machine called a lever.

Levers make it easier to lift heavy things, like a person or a seesaw. A hammer is an example of a lever. A lever is a simple machine consisting of a bar that rotates around a fixed point called the fulcrum.

Using a hammer to remove a nail changes both the direction and strength of the applied force. A wedge is a simple machine that is made up of two inclined planes forming a triangular shape. It provides mechanical advantage by converting the force applied at its end into forces perpendicular to the inclined surfaces. Scientists divide the six simple machines into two fam- ilies: the lever family and the inclined plane family.

The lever family includes the simple lever, the pulley, and the wheel and axle. The inclined plane family includes the simple inclined plane, the wedge, and the screw. Wheel and axle The wheel is considered to be one of the most significant inventions in the history of the world. There are three ways simple machines make work easier: by increasing the distance through which force is applied, by changing the direction of applied force, or by multiplying force of speed of the energy applied.

Turning the wheel a greater distance produces a short and more powerful movement at the axle. A wheel and axle is made by putting a shaft through the center of a larger wheel. Then the kinetic energy is transformed into gravitational potential energy as the object flies into the air.

One example where energy seems to disappears but actually transforms occurs when friction is acting on the spring. A catapult is a launching device that allows us to experimentally observe projectile motion see Figure 1.

Once the ball is launched, the only forces acting are gravity and air resistance. Gravity accelerates the ball in the negative y direction. Air resistance accelerates the ball in the opposite direction of travel. Tighten the catapult's bungees, if there is one. Try different tension levels to see if you can get longer launch distances. Apply a spray lubricant, such as WD, to the pivot point on your catapult.

This will allow the catapult to swing with ease without catching on anything. Overall, as the arm length of the catapult increased, the ball was thrown farther. My hypothesis was that a ball being thrown from a catapult , will travel a farther distance if it is thrown using a longer arm. This shows that extending the arm length does increase the distance thrown. Catapult physics is basically the use of stored energy to hurl a projectile the payload , without the use of an explosive. The three primary energy storage mechanisms are tension, torsion, and gravity.

The catapult has proven to be a very effective weapon during ancient times, capable of inflicting great damage. A catapult is a ballistic device used to launch a projectile a great distance without the aid of gunpowder or other propellants — particularly various types of ancient and medieval siege engines.

A projectile, in other words, travels the farthest when it is launched at an angle of 45 degrees. Both catapults and ballistas work by storing tension either in twisted ropes or in a flexed piece of wood in the same way an archery bow does , but on a larger scale.

A trebuchet tends to be easier to build because it consists simply of a pivoting beam and a counterweight that rotates the beam through an arc. To build a strong catapult , build a base supported with plywood triangles, with a cross brace at the top. Attach a launching basket to the throwing arm, and attach the arm to the base at one end with a long piece of rope that is wrapped through the frame and around the arm in an over-under-over pattern.

Newton's Third- law of motion states that for every action force, there is a reaction force that is equal in strength and opposite in direction. The catapult arm is pushing up on my hand with a lot of force, but my hand is pushing back, in the opposite direction, making the catapult arm move downwards. Some types of medeival caytapults are the Trebuchet, the Ballista, and the Mangonel.

How far can a catapult shoot? Borjas Villarraso Explainer. At what angle should a catapult launch for maximum distance?

A projectile, in other words, travels the farthest when it is launched at an angle of 45 degrees. Frusina Sasse Explainer. What is the purpose of a catapult? A catapult is a ballistic device used to launch a projectile a great distance without the aid of gunpowder or other propellants — particularly various types of ancient and medieval siege engines.

Keely Kashdan Explainer. Does the length of a catapult arm affect distance? Overall, as the arm length of the catapult increased, the ball was thrown farther. My hypothesis was that a ball being thrown from a catapult , will travel a farther distance if it is thrown using a longer arm. This shows that extending the arm length does increase the distance thrown. Armanda Gansert Pundit. When was the last time a catapult was used in battle?

The last time a trebuchet was used in professional warfare was in with the forces of Hernan Cortes. In the Battle of Tenochtitlan, Cortes employed trebuchets due to the critically limited supply of gunpowder that was available to the Conquistadors. Jiang Bolea Pundit. How does the angle of a catapult affect the distance?

The angle at which the throwing arm is pulled back to will affect both the distance the projectile will travel and also the height that it reaches when in the air. Chance Gordusenko Pundit. How do you build a simple catapult? Step 1: Grab 6 sticks and warm up the glue gun.

Step 2: Make two triangles by gluing three craft sticks together. Step 3: Cut a piece from the bamboo skewer. Step 4: Hot glue the skewer to each of the triangles. Step 5: Glue a couple of sticks to the base of the catapult for stability. Arelis Herten Pundit. Why was the catapult invented? During the Middle Ages, many weapons were created to help aid in the winning of battles.

As the castle walls became higher and stronger, a new way had to be invented to destroy them. One such weapon was the siege engine called a catapult. The first catapult however was invented around BC in Greek town Syracus.



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