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Classical mechanics

Velocity Review

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Name ______________________________ Date _________ Mr. Carcich Physics Velocity Test Review You need to know: The definition of kinematics. The difference between: Vectors and Scalars; and examples of each. Distance and Displacement; which is scalar? Which is vector? Speed and Velocity; which depends on direction also? **Can your speed remain constant but your velocity be changing? Explain. Two ways to have a constant velocity? Three ways to change your velocity? What is your acceleration when your velocity is constant? Graphing Derive data from, compare, and interpret the following graphs: Distance vs. Time Graph Slope = ___________ Horizontal line = ___________________ Linear Direct = ______________________________

Midterm Physics Exam

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Name __________________________ Mr. Carcich Physics Practice Mid-term Exam (2) Multiple Choice: 1) The first two parts of the scientific method are a. observation and question b. question and hypothesis c. theory and conclusion d. hypothesis and experiment 2) A logical and time-tested explanation of a phenomenon that occurs in the natural world is a. observation b. natural law c. theory d. hypothesis 3) The measure of how fast something is moving is defined as a. velocity b. speed c. acceleration d. free fall 4) Which of the following is not a valid unit of speed a. km/h b. centimeters per day c. light years per century d. joules per decade 5) Speed in a given direction is defined as

Vectores Scalars Review

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Name _____________________ Date _____ Mr. Carcich CP Physics Vectors/Scalars Review Sheet You need to know: What is the difference between scalar and vector quantities? What are four examples of vector quantities? What are four examples of scalar quantities? How do we draw vectors? What does the length of the line represent? What does the direction of the arrow represent? How do we measure the angle of the vector? (From the resultant to the nearest x-axis, less than 90 degrees) When drawing vectors, why do we need to use a scale? What is a resultant vector?

Circular Motion Questions

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Name ____________________ Date ___________?Mr. Carcich Physics 2D Motion Short Answers 1) Distinguish between rotation and revolution. Using the earth, provide an example of each. 2) Distinguish between rotational and tangential speed. What is their relationship? 3) If you are on the center of a merry-go-round, and you walk toward the outer edge, how does your rotational speed change? Your tangential speed? 4) When you whirl a can at the end of a string in a circular path, what is the direction of the force that acts on the can? 5) Does an object undergoing uniform circular motion accelerate? Why? 6) When a car makes a turn, do seat belts provide you with a centripetal force or centrifugal force?

M review

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1 Position(x, y or z) Displacement (?x, ?y or ?z) Change in position. Depends only on initial and final positions, not on path. Includes direction. ?x = ?vdt Velocity (v) Displacement per unit time Average velocity vave = ?x/?t Instantaneous velocity v = dx/dt ?v = ?adt Acceleration (a) A change in velocity: speeding up, slowing down, or turning. Average acceleration aave = ?v/?t Instantaneous acceleration a = dv/dt Problem: Acceleration (B-1993) 1. In which of the following situations would an object be accelerated? I. It moves in a straight line at constant speed. II. It moves with uniform circular motion. III. It travels as a projectile in a gravitational field with negligible air resistance. (A) I only (B) III only (C) I and II only

Physics

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Chapter 7 ? Rotational Motion and the Law of Gravity This chapter deals with rotational kinematics ? the relationships between rotational position, velocity, acceleration and time. Rotational dynamics will be discussed in the next chapter. Dynamics deals with energy, momentum, and forces. Universal gravitation is also discussed in this chapter in part since satellite and planetary motion involves rotation. Angular displacement, velocity, and acceleration Angle (() can be defined in terms of radius (r) and arc length (s) on a circle as

Motion in Two Dimensions

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Chapter 7 Problems 1, 2, 3 = straightforward, intermediate, challenging = full solution available in Student Solutions Manual/Study Guide = co ached solution with hints available at www.cp7e.com = biomedical application Section 7.1 Angular Speed and Angular Acceleration 1. The tires on a new compact car have a diameter of 2.0 ft and are warranted for 60 000 miles. (a) Determine the angle (in radians) through which one of these tires will rotate during the warranty period. (b) How many revolutions of the tire are equivalent to your answer in (a)? 2. A wheel has a radius of 4.1 m. How far (path length) does a point on the circumference travel if the wheel is rotated through angles of 30?, 30 rad, and 30 rev, respectively?

whoaaaa

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Arnav Sridher Period 2 Physics Collision Investigation Purpose: The purpose of this lab is to investigate the change in total momentum and total kinetic energy of an isolated 2 car collision. Procedure: Go to the website given Set up trial 1 Set a velocity for both cars as well as the mass. Make sure to follow the sheet that says what each trial should include. Press go and record the final velocity for each vehicle Repeat the steps for each trial Once you have 10 trials accounted for, calculate kinetic energy using the equation Ek=1/2(mv2) Once you have done this for the 10 trials, calculate the momentum that each vehicle has using the equation P=mv Data Table: Trials 1-4(elastic), trials 5-8(perfectly inelastic), and trials 9&10(inelastic) M1 (Kg) M2 (Kg) V1 (m/s) V2 (m/s)

Forces

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Test Questions Two tugboats are moving a barge. Tugboat A exerts a force of 3000 newtons on the barge. Tugboat B exerts a force of 5000 newtons in the same direction. What is the combined force on the barge? 8000 newtons 4000 newtons 2000 newtons None of the above If two men were arm wrestling and the first man was using 15 newtons, while the other was using 10 newtons, who would win? A. Neither B. First Man C. The one using 10 newtons D. The information given is not enough to answer the question What is net force? The amount of matter in an object. How much work is being done? The total force acted upon an object. How heavy the object is. Which direction will a rope go towards to when an unbalanced force is acted upon it? Nowhere Towards the unbalanced force Right Left

stuff

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Paragraph 1- Materials and Procedure Materials: 1 Pop Bottle 1 Balloon 1 Straw Duct Tape Scissors 1 Rubber Band Step 1: We wrapped our pop bottle in zebra duct tape for easy floating in the water. Step 2: Made an opening in the cap for the straw to go through. Step 3: Cut our pop bottle open to make space for the balloon. Step 4: Put the straw through the cap and taped the balloon to the straw securely/tied a rubber band to it Step 5: Blew the balloon up and put our boat in water! Step 6: Now you have your very own boat! (: Our vehicle/boat moved forward by the air pushing out of the balloon, causing it to move forward in the water. (: Paragraph 2- Newton?s 3rd1st Law of Motion

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