Lab manual-affect on increase in mass on the acceleration of an object. 4 trials will be completed, each with a constant difference in mass. The average time for each trial calculated, the distance covered for each trial and the acceleration due to each average time. A graph will be produced and analysis of the results.
Determining the nuclear products formed when given nuclei undergo either alpha or beta decay. Indicating which radioactive particle is involved. Discussion about nuclear decay and 1/2 life. Introduce Nuclear fission. Outline the reaction which occurs when uranium 235 is bombarded with a Neutron. Discuss a chain. reaction. View an image of the uranium 235 chain reaction and discuss the products formed and the release of neutrons from the reaction. Indicate the chain reaction will result in an atomic explosion and discuss reasons why a minimum amount of reactant material will not result in an explosive reaction.
Elicit a new formula which is used to determine acceleration involving the direct relationship between acceleration and the inverse proportion for mass. Determine the formula to be
a= Force/mass. Note th units of force in Newtons and the mass in kilograms. Newtons per kilogram become meters/second squared. Discuss and solve a few problems. Introduce the force or friction with all its parametrers and discuss constant velocity duel to force=friction
From a determined acceleration formula, discuss the use of instantaneous velocity and average velocity when used in the formula. Discuss velocity changes as initial minus final, and time changes as delta t.
Discuss acceleration and forces, balanced forces and unbalanced forces. Determine net forces acting include gravity, friction, and the support force. Acceleration depends on the net force. Determine that acceleration is directly proportional to he the net force and and inversely proportional to the mass. State Newton's second law. Answer a few word problems.
Determine the velocity, average velocity, and distance traveled by an object in free fall. Utilize the formulas needed to determine the velocity, average velocity, and distance an object will travel from time zero. Introduce d=1/2gt^2. Analyze a speed v time graph. Graph distance v time and describe and analyze the graph. Determine that the slope of the line is = to the velocity.
Outline and discuss types of radiation. Explain alpha radiation, type of particles, mass and number.
Use example to show alpha decay of radium into radon with the loss of a helium nucleus. Explain and discuss beta particle decay as a an electron given off. Show how iodine can be transformed into xenon with the conversion of a neutron into a proton and electron. Discuss gamma rays and energy contained in these rays. Examine how gamma rays can be emitted during both Alpha and beta decay. Introduce X rays as high energy electromagnetic radiation. View an X ray of hand bones.
Determine the acceleration constant of gravity using free fall data. Introduce a formula used to determine instantaneous speed as the acceleration of gravity x time. Determine the instantaneous speed of an object at 5 and 6 seconds and then determine the average speed at these time segments. Find the average speed from the instantaneous speed/2.
Discuss the movement of an object when tossed upward. Describe the motion as it moves upward, its speed, acceleration and zero instant speed. Discuss the change in velocity.
To investigate the relationship between distance and time for a ball rolling down a ramp- Collect time and distance data for a series of trials. Graph the results plotting distance v average time.
Repeat with an increase in the incline and graph the new Data.
Derive a working definition for acceleration. Create a math formula which includes the change of velocity and time to arrive at the acceleration. Present a few word problems used to calculate the acceleration of an object. Discuss how acceleration differs from velocity.
