It's very well known that in magnets, similar poles repel, while opposite poles attract. Electromagnets are similar to other magnets in the fact that they attract metal objects, but different because the magnetic pull is temporary. Three basic components make what we know as a Maglev train, which are the presence of a large electrical power source, metal coils lining the track, and large magnets mounted on the underside that guide the train. The main difference between Maglev trains and normal steam trains is that Maglev trains do not relay on an engine to move, but instead uses magnets to help it gain speed. The word Maglev is short for magnetic levitation, which indicates that Maglev trains practically levitate above the ground.
Over some time it was eventually redesigned and was then able to work on gas powered motors. The superchargers’ main mission is to produce more horsepower and torque for its applications. But how do they accomplish this mission? There are three key parts to how twin screw superchargers work. The components of the supercharger, how the supercharger operates on your engine and what the supercharger will produce.
This release of energy rotates the shaft and causes the throwing arm to move in a wide arc, launching the projectile from the attached basket. Trebuchets, on the other hand, do not rely of elasticity. They rely primarily on leverage to send projectiles soaring through the air. They use a “Class 1” lever, where a force applied on one end of the lever, creates motion in the other end to move the throwing arm. This force is provided by gravity when a huge counterweight at one end of the arm falls.
Catapults were an absolute revelation in weaponry. Although they are very hard to create, they use very simple forms of physics to complete their task of destruction. The catapult has a basket on the end of a movable arm strong enough to hold the weight of the object it is intended to hurl. Tension is applied to the arm, which is forced down and then locked in place. People in ancient times used twisted ropes to create tension.
Weightlessness occurs when there is no force of support on your body. Free fall is when your body is effectively accelerating downward at the acceleration of gravity; here you are not being supported. The sensation you get from apparent weight (mg- mass times gravity) comes from the support that you feel from the floor or from your seat. Some examples of the sensation of apparent weight occur on a roller-coaster or in an airplane due to the fact that they are accelerating either upward or downward; like going over the very top in a rollercoaster. Weightlessness happens or is met when the downward acceleration of the set is equal to the acceleration of gravity.
In the catapult tension, torsion, and gravity are the three primary energies. When the throwing arm is pulled back, the tension increases, which is stored when you latch the hook to the screw, when released the tension is let go and goes through the arm and launches the projectile. The two dimension motion in a catapult is acted on by gravity and inertia of the projectile. Since air resistance is present when the projectile is launched, its inertia causes the velocity of it to slow down. When gravity is acting upon the projectile in the X direction, it makes the projectile go down.
The piano functions because it relies on physics to make sound. The average piano uses 230 feet of steel wire, which are connected to the 88 keys. The length, diameter, and tension of the strings determine the sound and when the keys are pressed down, the strings vibrate. When pressing a key, a hammer drops on the key and creates sound. A damper soon follows after, which stops the sound.
Experiment 8: Ballistic Pendulum Physics 1408-C1 10/23/2012 Abstract: This experiment explored the conservation of energy and conservation of momentum of a totally inelastic collision. We accomplished this by using a ballistic pendulum. With this device, a bullet is fired into a wooden block suspended as a pendulum, embeds itself in the block and causes the combined block-bullet system to swing to a particular angle. This angle was smaller during the short range setting (29.0 o) and larger during the medium range setting (45.6 o). In addition, the initial and final velocities due to the short range setting were smaller in comparison to the initial and final velocities due to the short range setting.
The motion is continued until friction comes in contact and slows it down. Some of the physical independent variables of the simple pendulum are the length from the point it pivots, the angular displacement, two different masses of the bob, which is the time it takes the pendulum to complete the vibration. Formulas F = -mgsinθ, This formula explains the Force being up on the oscillating pendulum. The mass times the gravitational pull times the angle at which the pendulum starts at rest. It can be expressed as F= -mgθ because sinθ and θ are very close together in terms of radians.
How to Create a Pendulum Pivot [pic] Overview Pendulum is a weight or load suspended from a string, wire or a light rod attached to a fixed point called a pivot point or pendulum pivot. When the load or a bob is attached to the string, lifted and let go, it will swing back and forth in a continuous periodic motion – a duration that depends on its length. You can make your own pendulum pivot using several methods and let it swing. (See Reference 2) Step 1 Insert a small pivot rod into one of the holes of a meter stick pendulum to serve as a pivot point. If it has no holes, then drill a small hole at a distance of 19.7 inches from the point you wish the pendulum to swing.