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# Lecture10 - PHYSICS 149 Lecture 10 Chapter 4 4.1 Motion...

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PHYSICS 149: Lecture 10 • Chapter 4 – 4.1 Motion along a Line due to a Constant Net Force – 4.2 Visualizing Motion along a Line with Constant Acceleration Lecture 10 Purdue University, Physics 149 1

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Exam Schedule • Midterm Exam 1 – Wednesday, February 23, 18:30 – 19:30 – Place: PHY 333 – Chapters 1 - 4 – Things to bring: • Purdue ID Card, Crib Sheet, #2 Pencil, Calculator • See syllabus for detailed information • Midterm Exam 2 – Wednesday, April 6, 18:30 – 19:30 – Place: PHYS 333 • Final Exam – Thursday, May 5, 15:20 – 17:20 – Place: PHY 333 Lecture 10 2 Purdue University, Physics 149
Midterm Exam 1 • The exam is closed book. • The exam is a multiple-choice test. • There will be 15 multiple-choice problems. – Each problem is worth 10 points. – Maximum possible score will be 150 points. • Note that total possible score for the course is 1,000 points (see the course syllabus) • The difficulty level is about the same as the level of textbook problems. • You may make a single crib sheet – You may write on both sides of an 8.5” × 11.0” sheet Lecture 10 3 Purdue University, Physics 149

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Midterm Exam 1 • Do not forget to bring – Purdue ID Card, – Crib Sheet, – #2 Pencil (with an eraser), –C a l c u l a t o r • Adaptive learners should contact Prof. Neumeister ASAP. Academic Dishonesty: – Do not cheat! Cheaters will be given an F grade in the course and will be reported to the Dean of Students. • Review session: – During next recitation session – Come and see your TA in the help center (private mini-reviews) Lecture 10 4 Purdue University, Physics 149
Lecture 10 Purdue University, Physics 149 5 Not 0 since V f and V i are not the same ! = 0 A ball is thrown straight up in the air and returns to its initial position. During the time the ball is in the air, which of the following statements is true? A) Both average acceleration and average velocity are zero. B) Average acceleration is zero but average velocity is not zero. C) Average velocity is zero but average acceleration is not zero. D) Neither average acceleration nor average velocity are zero. V ave = Δ y/ Δ t = (y f –y i ) / (t f –t i ) a ave = Δ v/ Δ t = (v f –v i ) / (t f i ) ILQ 1 C correct

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Lecture 10 Purdue University, Physics 149 6 How could you determine acceleration from a graph of velocity versus time?
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Lecture10 - PHYSICS 149 Lecture 10 Chapter 4 4.1 Motion...

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