Lesson 12 Momentum and Impulse - PDF

SCIENCE 10 - PHYSICS MOMENTUM AND IMPULSE MR. JEROME MORALES MR. CARL FERMIL AGUINALDO Copyright © 2022 Saint Jude Catholic School, Manila REVIEW OF THE PAST LESSON Copyright © 2022 Saint Jude Catholic School, Manila  The teache...

SCIENCE 10 - PHYSICS MOMENTUM AND IMPULSE MR. JEROME MORALES MR. CARL FERMIL AGUINALDO Copyright © 2022 Saint Jude Catholic School, Manila REVIEW OF THE PAST LESSON Copyright © 2022 Saint Jude Catholic School, Manila  The teacher will ask the students to sing the SJCS Hymn while passing the "sibuyas" around the room to each classmate. The path of the "sibuyas" shall be BALAT SIBUYAS determined by the teacher. Whoever is holding the "sibuyas" when the song stops shall answer the question written in layer that they are peeling. Cycle repeats until all questions are answered. Copyright © 2022 Saint Jude Catholic School, Manila 01 IMPULSE AND MOMENTUM Relate impulse and momentum to collision of objects IMPULSE-MOMENTUM OBJECTIVES 02 THEOREM Derive the equation of impulse from the law of acceleration Copyright © 2022 Saint Jude Catholic School, Manila INTRODUCTION TO IMPULSE AND MOMENTUM Copyright © 2022 Saint Jude Catholic School, Manila  IN BASKETBALL, WHEN THE COMMENTATOR SAYS "THE PLAYER IS GAINING THEIR MOMENTUM" IN THE GAME, WHAT DO THEY MEAN? Copyright © 2022 Saint Jude Catholic School, Manila  ANSWER: BECOMING MORE AND MORE UNSTOPPABLE Copyright © 2022 Saint Jude Catholic School, Manila  WHAT DOES IT MEAN WHEN THE COMMENTATOR SAYS "THE PLAYER'S MOMENTUM WAS LOST"? Copyright © 2022 Saint Jude Catholic School, Manila  ANSWER: THE CONTINUITY OF THE PLAYER'S GOOD PERFORMANCE WAS INTERRUPTED Copyright © 2022 Saint Jude Catholic School, Manila WHICH ITEM WOULD YOU RATHER CATCH? Copyright © 2022 Saint Jude Catholic School, Manila MOMENTUM Defined as inertia in motion. A vector quantity that can be calculated as: p = mv Where: p – momentum; m – mass; v - velocity Copyright © 2022 Saint Jude Catholic School, Manila Copyright © 2022 Saint Jude Catholic School, Manila MOMENTUM In simple terms, we can say that momentum is the degree of how difficult it is to stop or impede the movement of an object. much like… INERTIA Natural/inherent property of matter to resist change in motion. Copyright © 2022 Saint Jude Catholic School, Manila MOMENTUM p = mv As discussed in the video earlier, mass and velocity of a moving object is directly proportional to its momentum. This means that the greater the mass of an object is, or the faster it is moving, or both, it will have a greater amount of momentum. (or the more unstoppable it becomes) Copyright © 2022 Saint Jude Catholic School, Manila MOMENTUM. p = mv Momentum is expressed in units as Kg Kilogram-meters per second m/s Copyright © 2022 Saint Jude Catholic School, Manila WHICH ITEM WOULD YOU RATHER CATCH? This item has less momentum by virtue of its mass. Copyright © 2022 Saint Jude Catholic School, Manila  CAN AN OBJECT AT REST HAVE MOMENTUM? No, zero velocity makes the whole quantity zero. Copyright © 2022 Saint Jude Catholic School, Manila  CAN A SKATEBOARD HAVE EQUAL MOMENTUM THAN A 10-WHEELER TRUCK? Skateboard Mass = 5.0 Kg Truck Mass = 5,000 Kg Copyright © 2022 Saint Jude Catholic School, Manila  THE ANSWER IS YES! BUT HOW? Skateboard Mass = 5.0 Kg Truck Mass = 5,000 Kg Copyright © 2022 Saint Jude Catholic School, Manila Copyright © 2022 Saint Jude Catholic School, Manila WHAT IF THE TRUCK IS RUNNING AT 12 m/s? Skateboard Mass = 5.0 Kg Truck Mass = 5,000 Kg Copyright © 2022 Saint Jude Catholic School, Manila STILL, THE ANSWER IS YES Skateboard Mass = 5.0 Kg Truck Mass = 5,000 Kg Copyright © 2022 Saint Jude Catholic School, Manila Copyright © 2022 Saint Jude Catholic School, Manila PRACTICE DRILL Copyright © 2022 Saint Jude Catholic School, Manila  Bring out ¼ Sheet of Paper. Write your name and section. Answer the following questions. This seatwork/practice drill will be INSTRUCTIONS recorded as a reference for areas of improvement. The practice drill will be good for 10 minutes. Copyright © 2022 Saint Jude Catholic School, Manila #1 What is momentum? Copyright © 2022 Saint Jude Catholic School, Manila  #2-3 What are the factors that affect momentum? Copyright © 2022 Saint Jude Catholic School, Manila  #4 WHAT IS THE FORMULA FOR MOMENTUM? Copyright © 2022 Saint Jude Catholic School, Manila  #5 HOW CAN IT BE EXPRESSED IN UNITS? Copyright © 2022 Saint Jude Catholic School, Manila  #6-10 By how much factor should a bus with 1,200-Kg mass be moving to have an equal momentum with a 750-g bullet? Copyright © 2022 Saint Jude Catholic School, Manila  CHECK YOUR OWN PAPER Check your paper while the teacher discusses the answers. Copyright © 2022 Saint Jude Catholic School, Manila  IMPULSE DEFINED AS THE PRODUCT OF FORCE AND TIME I = Ft Where: I is IMPULSE F is FORCE t is TIME Copyright © 2022 Saint Jude Catholic School, Manila  FORCE TIME IMPULSE I = Ft IMPULSE  IMPULSE DEFINED AS THE PRODUCT OF FORCE AND TIME I = Ft N.s EXPRESSED IN THE UNIT: NEWTON-SECONDS Copyright © 2022 Saint Jude Catholic School, Manila IMPULSE CHANGES MOMENTUM Copyright © 2022 Saint Jude Catholic School, Manila  IMPULSE-MOMENTUM THEOREM WHEN THE MOMENTUM OF AN I = ∆p OBJECT CHANGES, IT’S EITHER THEIR MASS, THEIR VELOCITY, OR BOTH HAS CHANGED. Ft = m ∆v WHEN MASS REMAINS UNCHANGED, LIKE IN MOST CASES, mat = m ∆v ∆v THE VELOCITY CHANGES (ACCELERATION). m t = m ∆v WHAT PRODUCES ACCELERATION? t A NET FORCE m ∆v = m ∆v Copyright © 2022 Saint Jude Catholic School, Manila PRACTICE DRILL Copyright © 2022 Saint Jude Catholic School, Manila  Bring out ¼ Sheet of Paper. Write your name and section. Answer the following questions. This seatwork/practice drill will be INSTRUCTIONS recorded as a reference for areas of improvement. The practice drill will be good for 10 minutes. Copyright © 2022 Saint Jude Catholic School, Manila ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?  CHECK YOUR OWN PAPER Check your paper while the teacher discusses the answers Copyright © 2022 Saint Jude Catholic School, Manila CHALLENGE QUESTION Copyright © 2022 Saint Jude Catholic School, Manila CHALLENGE QUESTION WHEN DUNKING A BASKETBALL IN THE RING 10-FT HIGH, YOU NEED TO EXERT A CERTAIN AMOUNT OF FORCE TO PROPEL YOURSELF UPWARD AND REACH THE RIM OF THE RING. WITH YOUR KNOWLEDGE OF IMPULSE AND MOMENTUM, HOW CAN YOU INCREASE YOUR CHANCE TO REACH THE RIM OF THE RING TO DUNK THE BALL? Copyright © 2022 Saint Jude Catholic School, Manila  END Copyright © 2022 Saint Jude Catholic School, Manila