Newton’s first law states that if a body is at rest, it will remain at rest. If a body is moving with a constant velocity, it will continue to do so. An unbalanced force is the only way to change an object at rest or at a constant velocity. In boxing a fighter will experience this law when being hit. When a punch is thrown a boxer will remain in a balanced position.
The more mass taken away, the quicker it will vibrate. Theory: Oscillation is a way of returning a system to its equilibrium position, the stable position where there is no net force acting on it. Once a system is thrown off balance, it does not return to is original state; it oscillates back and forth about the equilibrium position. The movement of an oscillating body is called harmonic motion. The oscillating motion of a spring is caused by the stretching or compression of it.
We used a vernier caliper to obtain the diameter of those two and therefore, the radius. When adding all the numbers together, we found that the true radius(r) of the orbit was 0.139 m. To find our tension, we needed to find out how much weight we needed to pull the object towards away from the spring and on the tip of the pointer as shown below. The tension needed to pull the mass on the tip of the pointer 1.05 kg. In theory the force of acceleration needed to pull the mass to same exact spot should equal the force of tension multiplied by the force due to gravity. Using Newton’s second law, F=ma, we know that the
Uniformly Accelerated Movement Abstract Acceleration is defined as the rate of change of velocity with respect to time in a given direction. Uniformly accelerated movement is movement that always has the same acceleration, meaning that it is a constant force; the force of gravity is the classic example. We will prove that acceleration with a constant force of gravity can help determine velocity and distance at a certain time using derived basic equations. The data collected determines a 3.78% of error that proves the equations are correct, and that its value could have been affected by errors in the process. 1 Introduction Acceleration is defined as the rate of change of velocity with respect to time in a given direction.
Megan Lankford 10/11/12 Physics Lab: The Ballistics Pendulum and Projectile Motion Introduction/Objective In this lab, our focus was to identify the initial velocity of a metal ball by firing it as a projectile and compare it with the velocity. Also, we had to determine the initial velocity of the ball fired into the ballistics pendulum and its relativity to the initial velocity in which the ball plus pendulum moves after firing. This lab demonstrates the principle of conservation of momentum and projectile motion and how they are relative to each other. Procedure 1 To being our experiment, we had to weigh the metal ball and pendulum to give us our mass and help us determine the before and after effects of the collision. After we had taken all of our measurements we had to decide which setting we were going to fire the ball at.
Theory: 3 Kinematic Measurement of Speed In this experiment the steel ball was moving in two dimensions both horizontally and vertically. Since these two components of motion are independent of one another, two sets of equations are used- one for the balls horizontal motion and one for its vertical motion. For the horizontal component, there are no external forces acting on the ball. Therefore there is no acceleration and the ball moves at a constant velocity. The distance the ball travels in the horizontal direction can be calculated using .
Newton’s Third Law of Motion Newton’s third law of motion states that for every action there is an opposite reaction. Therefore any pair of objects that interact with each other while exerting a force an, equal force will present its self in order to counter act the opposite force. This law describes the relationship between a body and the forces acting upon it and its motion in order to counter act. Thus this law states that forces exist in pairs, for example push and pull. If one object A were to exert a force upon object B then at the same time B would exert a force on A and the two forces are equal and opposite to each other, Force A = Force B and because of this it does not matter which force is known as the action and which is the reaction as both forces are equal.
Newton’s Second Law Lab Purpose: The purpose of this experiment was to determine the relationships between mass, force and acceleration as well as to prove Newton’s second law Hypothesis: It was hypothesized that there would be an inverse relationship between acceleration and mass; as the value of the mass increased the acceleration decreased. As well it is hypothesized that there would be a direct relationship between the net force and acceleration; as the net force increases the acceleration increases as well. Materials & Method: The materials that were required to do the experiment were a metre stick; its purpose was to measure the amount of string that is going to be used to drag the cart. Next equipment needed for the lab was a dynamic cart; it was going to be dragged by the string with a mass on the other end and will find relationships between these two. Also string (about 75cm) was needed in this experiment which would help pull the cart with the help of the masses that were used.
Pendulum Aim: To investigate the time for 1 oscillation for different lengths of pendulum and different masses for the pendulum bobs Hypothesis: The time taken for oscillation is proportional to the lengths of the pendulums Apparatus: * A retort stand * Strings * Masses( big, medium and small balls) * Metre ruler * Stopwatch Procedure: 1. Fix the iron stand on the bench 2. Hang the mass on the end of strings and the iron stand 3. Measure the lengths of pendulum with the metre rule 4. Displace the masses to cause oscillation 5.
As the vibrating string moves in the forward direction, it begins to push upon surrounding air molecules, moving them to the right towards their nearest neighbor. This causes the air molecules to the right of the string to be compressed into a small region of space. As the vibrating string moves in the reverse direction (leftward), it lowers the pressure of the air immediately to its right, thus causing air molecules to move back leftward. The lower pressure to the right of the string causes air molecules in that region immediately to the right of the string to expand into a large region of space. The back and forth vibration of the string causes individual air molecules (or a layer of air molecules) in the region immediately to the right of the string to continually vibrate back and forth horizontally.