Transcript S = D
1. An object’s distance from another object is changing. 2. Energy that is stored and waiting to be used is ___ energy. 3. Energy of motion or movement is ___ energy. 4. A place or object used for comparison to determine if something is in motion 5. The basic SI unit of length 6. Distance the object travels in one unit of time (or distance/time) 7. Speed in a given direction 8. A push or a pull on an object 9. When the overall force changes an object’s motion it is a(n)____ 10. Equal forces acting on one object in opposite directions (the object won’t move) 11. Force that one substance exerts on another when the two rub against each other 12. Force that pulls objects toward each other 13. When the only force acting on a falling object is gravity 14. A type of friction that occurs between objects and air 15. A measure of the force of gravity on an object 16. A measure of the amount of matter in an object 17. The tendency of an object to resist changes in its motion 18. The point on an object where most of its mass lies (the object is balanced on this point) 19. Fill in the blanks to explain the Law of Gravity proposed by Newton. There are 3 parts. Don’t get this confused with his 3 Laws of Motion! Anything that has mass has (a)__________. Two things will affect the pull of gravity between 2 objects: One is the (b)________ of the objects and the other is the (c)________between the two objects. 20. Who did an experiment at the Leaning Tower of Pisa? 21. What did Galileo prove at the Leaning Tower of Pisa? a. He showed the moons of Jupiter. b. He proved that all objects fall to Earth at the same speed. c. He perfected the telescope. d. He was the Father of the Scientific Method. 22. Which property of matter changes from planet to planet? a. b. c. d. Mass Weight Volume Area 23. Why would you weigh most on Jupiter? a. Jupiter has less mass than the other planets, so it has the most gravitational pull. b. Jupiter has more mass than the other planets, so it has the most gravitational pull. c. Jupiter has more mass than the other planets, so it has the least gravitational pull. d. Jupiter has less mass than the other planets, so it has the least gravitational pull. 24. Why would you weigh least on Mars? a. Mars has less mass than the other planets, so it has the most gravitational pull. b. Mars has more mass than the other planets, so it has the most gravitational pull. c. Mars has more mass than the other planets, so it has the least gravitational pull. d. Mars has less mass than the other planets, so it has the least gravitational pull. 25. What is the formula for calculating speed? 26. What is the formula for calculating distance? 27. What is the formula for calculating time? 28. What two things does a velocity tell about an object’s motion? 29. Force = Mass x Acceleration This formula shows that both the size of the force and the mass of the object itself affect the object’s acceleration, or change in velocity (speed or direction). a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 30. For every action there is an equal and opposite reaction. a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 31. An object at rest will stay at rest & an object in motion will stay in motion until acted upon by a force. a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 32. If you set a book on the desk, the book will stay there. a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 33. You lift a heavy box of books with more force than a box of sweaters. a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 34. A rocket takes off a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 35. You push on a ball harder than your little brother does and your ball goes farther. a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 36. If you are riding in a car that suddenly stops, you surge forward until the seatbelt you are wearing stops you. a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 37. When you paddle a canoe, you push back in the water with the paddle and move forward in the canoe. a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 38. A cheetah is running after its prey. It dashes for a meerkat that is 7 meters away. It reaches the meerkat in just 2 seconds. What is the cheetah’s average speed? 39. You are at one end of a solid metal pipe, and your friend is at the other end. Your friend hits the pipe. You hear the sound 1.5 seconds later. You both measure the pipe, and it is 7,500 meters. At what average speed did the sound your friend made travel through the pipe? 40. You clocked an ant traveling from a fig tree to its ant hole. He reached his home in 25 seconds. You determined the ant’s speed to be 30 cm/s. What is the distance? 41. You are traveling with your family to Disney World. Your father tells you that Disney World is 480 kilometers away and you will be traveling a 60km/hr. What is your time to get to Disney World? 42. You are traveling with your family to Disney World from Atlanta, Georgia. Your father tells you that Disney World is 410 kilometers away. It will take you 5 hours to reach Disney World. What is your velocity? 1. An object’s distance from another object is changing. motion 2. Energy that is stored and is waiting to be used is __ energy. Potential 3. Energy of motion or movement is ___ energy. kinetic 4. A place or object used for comparison to determine if something is in motion Reference point 5. The basic SI unit of length meter 6. Distance the object travels in one unit of time (or distance/time) speed 7. Speed in a given direction velocity 8. A push or a pull on an object Force 9. When the overall force changes an object’s motion it is a(n) ____ Unbalanced force 10. Equal forces acting on one object in opposite directions (the object won’t move) Balanced force 11. Force that one substance exerts on another when the two rub against each other Friction 12. Force that pulls objects toward each other Gravity 13. When the only force acting on a falling object is gravity Free fall 14. A type of friction that occurs between objects and air Air resistance 15. A measure of the force of gravity on an object Weight 16. A measure of the amount of matter in an object Mass 17. The tendency of an object to resist changes in its motion Inertia 18. The point on an object where most of its mass lies (the object is balanced on this point) Center of Gravity 19. Fill in the blanks to explain the Law of Gravity proposed by Newton. There are 3 parts. Don’t get this confused with his 3 Laws of Motion! Anything that has mass has (a) GRAVITY. Two things will affect the pull of gravity between 2 objects: One is the (b)MASS of the objects and the other is the (c)DISTANCE between the two objects. 20. Who did an experiment at the Leaning Tower of Pisa? Galileo 21. What did Galileo prove at the Leaning Tower of Pisa? a. He showed the moons of Jupiter. b. He proved that all objects fall to Earth at the same speed. c. He perfected the telescope. d. He was the Father of the Scientific Method. 22. Which property of matter changes from planet to planet? a. b. c. d. Mass Weight Volume Area 23. Why would you weigh most on Jupiter? a. Jupiter has less mass than the other planets, so it has the most gravitational pull. b. Jupiter has more mass than the other planets, so it has the most gravitational pull. c. Jupiter has more mass than the other planets, so it has the least gravitational pull. d. Jupiter has less mass than the other planets, so it has the least gravitational pull. 24. Why would you weigh least on Mars? a. Mars has less mass than the other planets, so it has the most gravitational pull. b. Mars has more mass than the other planets, so it has the most gravitational pull. c. Mars has more mass than the other planets, so it has the least gravitational pull. d. Mars has less mass than the other planets, so it has the least gravitational pull. 25. What is the formula for calculating speed? S=D T 26. What is the formula for calculating distance? D=SxT 27. What is the formula for calculating time? T=D S 28. What two things does a velocity tell about an object’s motion? Speed and direction 29. Force = Mass x Acceleration This formula shows that both the size of the force and the mass of the object itself affect the object’s acceleration, or change in velocity (speed or direction). a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 30. For every action there is an equal and opposite reaction. a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 31. An object at rest will stay at rest & an object in motion will stay in motion until acted upon by a force. a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 32. If you set a book on the desk, the book will stay there. a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 33. You lift a heavy box of books with more force than a box of sweaters. a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 34. A rocket takes off a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 35. You push on a ball harder than your little brother does and your ball goes farther. a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 36. If you are riding in a car that suddenly stops, you surge forward until the seatbelt you are wearing stops you. a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 37. When you paddle a canoe, you push back in the water with the paddle and move forward in the canoe. a. b. c. d. Newton’s First Law of Motion Newton’s Second Law of Motion Newton’s Third Law of Motion Newton’s Law of Gravitational Pull 38. A cheetah is running after its prey. It dashes for a meerkat that is 7 meters away. It reaches the meerkat in just 2 seconds. What is the cheetah’s average speed? S=DT S = 7 m 2 sec= S = 3.5 m/sec 39. You are at one end of a solid metal pipe, and your friend is at the other end. Your friend hits the pipe. You hear the sound 1.5 seconds later. You both measure the pipe, and it is 7,500 meters. At what average speed did the sound your friend made travel through the pipe? S=DT S = 7,500 m 1.5 sec= S = 5000 m/sec 40. You clocked an ant traveling from a fig tree to its ant hole. He reached his home in 25 seconds. You determined the ant’s speed to be 30 cm/s. What is the distance? D=SxT D = 30 cm/sec x 25 sec D = 750 cm 41. You are traveling with your family to Disney World. Your father tells you that Disney World is 480 kilometers away and you will be traveling a 60km/hr. What is your time to get to Disney World? T=DS T = 480 km 60 km/hr S = 8 hours 42. You are traveling with your family to Disney World from Atlanta, Georgia. Your father tells you that Disney World is 410 kilometers away. It will take you 5 hours to reach Disney World. What is your velocity? Velocity = Speed (D T) and direction S = 410 km 5 hr S = 82 km/hr V= 82 km/hour southeastward