For most purposes Newton's laws of gravity apply, with minor modifications to take the general theory of relativity into account. 2. Inertia - A property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force. 3. Potential Energy - Is the energy stored in an object due to its position in a force field or in a system due to its configuration.
Newton’s second law of motion is expressed as a mathematical equation: Fnet = ma (Force = mass*acceleration) A significant notion of this equation is that an object accelerates in the direction of the new force, and acceleration is created by the net force. The SI unit for force in the above equation is Newton (N), SI unit for accelerations is metre per second squared (m/s2) and the SI unit for mass is kilograms (kg). The objective of this experiment was to show the relationship between acceleration and force in a frictionless environment and to show the concept of mass (Lab#1). Other equations used in this experiment were: V22 = V12 + 2ad; used to find the acceleration for each weight V1 = Lt1 and V2 = Lt1; both used to find the acceleration Materials * Two vernier photogate timers * String * Glider * Blower * Air—cushioned track * Weights and Hanger * Pulley and clamps * Vernier Lab Pro Procedure and Observations 1. Two photogate timers, 60 cm apart, were set over the air track.
Gravitational potential energy of an object (Ep) of mass m at a height of h above the Earth’s surface, is defined as Ep=mgh. It can therefore be summarised that for an object to accumulate gravitational potential energy, work/energy must be exerted on it. * Define gravitational potential energy as the work done to move an object from a very large distance away to a point in a gravitational field Ep = -Gm1m2r * As stated before, gravitational potential energy is defined as the energy of a mass due to its position within a gravitational field. It can also be defined, however, that the force of attraction between a planet and an object (gravitation) will become zero at an infant distance away from the planet. We can therefore define
Aim of experiment (1.1) The aim of this experiment is to show that the force exerted by a jet of fluid striking onto an object is equivalent to the rate of change of momentum in the jet. It is possible to observe the shape of the fluid after the impact with the flat plate. Apparatus (1.2) Impact of a jet apparatus Steady water supply with a flow control valve A flat plate Set of calibrated weights Stop watch Theory of experiment (1.3) In this experiment the rate of change is calculated directly from the change in momentum rate of the fluid before the fluid hits the plate and after the fluid hits the plate. This is a diagram of the straight plate and what will happen as the fluid impacts on the plate. Before the impact of the fluid onto the plate, the fluid is in line with the x-axis, as shows by the velocity vector labeled V1.
And if they have mass, they have inertia. That is, an object in space resists changes in its state of motion. A force must be applied to set a stationary object in motion. Newton's laws rule - everywhere! 5.
To determine the free-fall acceleration g from a graph of acceleration vs. sine of track angle. • measure the acceleration of a rolling cart on an inclined plane with a motion detector; • change the angle of the incline and measure the acceleration for different angles; • determine how the acceleration depends on the angle and the gravitational acceleration Measuring 'g' experiment. The purpose of this experiment is to measure the acceleration due to gravity and to see if the effects of air resistance can be observed by dropping various balls and recording fall times.. Moment of Inertia The purpose of this experiment is to determine
Finally, we analyze the errors in both parts of the lab by propagation by substitution and compare the theoretical-experimental values using errors. III. Results: The theoretical buoyant forces for the sphere, the small cylinder, the block, and the big cylinder are 0.297N, 0.131N, 0.369N, and
The value of the force constant for the spring is most nearly (A) 0.33 N/m (B) 0.66 N/m (C) 6.6 N/m (D) 33 N/m (E) 66 N/m 4. A block of weight W is pulled along a horizontal surface at constant speed v by a force F, which acts at an angle of with the horizontal, as shown above. The normal force exerted on the block by the surface has magnitude (A) W F cos (B) WFsin (C) W (D) W + Fsin (E) W + Fcos 5. When the frictionless system shown above is accelerated by an applied force of magnitude the tension in the string between the blocks is (A) 2F (B) F (C) F (D) F (E) F 6. A push broom of mass m is pushed across a rough horizontal floor by a force of magnitude T directed at angle as shown above.
To analyse the two different plans, a number of physics concepts need to be identified. The report will discuss the energy high and lows, with kinetic and gravitational energy as well as differences in acceleration and velocities. To understand
* Smart pulley, used at the end of the track as a pulley system between the bigger and smaller masses. Principles The principles used in the experiment would be Newton’s Second Law, which says that the behavior of objects under a net force is Fnet=ma, and net force is the sum of all forces acting on an object, Fnet=F. The experiment also uses principles of Tension “T” and the force of gravity “Fg”, which is equal to 9.8 m/s². Procedure Part A * Take the mass of the cart: 253.0 g * Add a 10g weight to the 1.0 g paper clip, making smaller mass 11.0g * Record the slope of the line of run #1 after releasing the cart to the end of the track. (y = 0.355x + 0.119) * Repeat with another 10g weight, making smaller mass 21.0g * Record the slope of the line after run #2 (y = 0.672x + 0.155) * Repeat with another 10g weight, making smaller mass 31.0g * Record the slope of the line after run #3 (y = 0.966x + 0.268) * Repeat with another 10g weight, making smaller mass 41.0g * Record the slope of the line after run #4 (y = 1.27x + 0.135) * Repeat with another 10g weight, making smaller mass 51.0g * Record the slope of the line after run #5 (y = 1.46x + 0.294) * Calculate the acceleration for each run using a =