Science Vocabulary Bingo Ch. 10 Forces - PowerPoint PPT Presentation

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Science Vocabulary Bingo Ch. 10 Forces

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  1. Science Vocabulary Bingo Ch. 10 Forces

  2. A _______ ______ is a place or object used for comparison to determine if something is in motion. • An object is in motion if it changes position relative to a ________ _____. =reference point

  3. Mass x Velocity = __________ • Newton called it “a quantity of motion” =Momentum

  4. An ________ _________ can cause an objects velocity to change… When the net force on the object is NOT zero Unbalanced Force

  5. ________ is speed in a given direction. The car was traveling 75 mphNorth on the 405 freeway. =Velocity

  6. An object at rest will stay at rest, an object in motion will stay in motion. This law of motion can be summed up in one word… • Inertia

  7. In general, the force that two surfaces exert on each other when they rub against each other. • Smooth surfaces produce less _____ than rough surfaces. • =Friction

  8. The force that pulls all falling objects toward earth… • gravity

  9. When Matter returns to its original shape after it is squeezed or stretched….. • Waist band • Sponge =Elastic Force

  10. If the vehicle goes 0 – 100 mph in 5 seconds, find the vehicles acceleration. • 20 mph/sec

  11. Friction that occurs when an object rolls over a surface • Ex. Tires on a road • Rolling friction

  12. Equal forces acting on an object in opposite directions, and does not cause motion… Balanced forces

  13. For every action there is an equal and opposite reaction • =Newtons 3rd Law of Motion

  14. Any force that causes an object to move in a circle. Ex: a Satelite around earth A roller coaster Centripetal force

  15. Graph • Speed stays the same every second. =Constant speed

  16. The rate at which velocity changes… • Examples: speeding up, slowing down or changing direction =Acceleration

  17. This is an object that orbits the earth. An object that travels around another object in space is called… • Satellite

  18. A push or a pull is a … And it has both direction and magnitude =force

  19. ________ __ ____ _______ states that the force of gravity acts between all objects in the universe. Universal Law of Gravitation

  20. A bicyclist travels 50 km in 2 hrs. What is the bicyclists average speed? 50km/2hrs =25 km/hr

  21. When all forces acting on an object are added together its called the ______ _______. Net Force

  22. The energy an object has due to its motion is called ________ ______. =Kinetic Energy

  23. Fluid friction experienced by objects flying threw air.. • Ex. a leaf or a piece of paper • Air restance

  24. This law states that the momentum of any group of objects remains the same, or is conserved, unless outside forces act on the objects. (friction is an example of an outside force) • The law of conservation of momentum

  25. A measure of the force of gravity on an object… • weight

  26. A mouse is traveling at a velocity of 10 m/s west and its mass is 25 kg what is its momentum? • 250 kg x m/s

  27. Total Distance /Total Time = =Average Speed

  28. The amount of matter in an object… • This measurement stays the same no matter where an object is… • (on earth or the moon for example) • mass

  29. An object that is thrown is called a… • projectile

  30. When the only force acting on a falling object is gravity, the object is said to be… • Free falling

  31. For every action force there is an equal and opposite ______ ______. • Reaction force

  32. When measuring force, the units used are kg x m/s sq. or ______. • Newtons • (N)

  33. What formula is used to calculate force… Force = ________ Mass X Acceleration

  34. Friction that occurs when one solid surface slides over another… • Sliding friction

  35. Mass, Acceleration and Force are all related. If one of those components changes, it will affect the others. • Ex. … • Newtons 2nd Law

  36. Free falling objects accelerate at what rate due to the pull of gravity? • 9.8 m/s squared

  37. What was the velocity of the plane that traveled 1000 miles in 5 hours east? • 200 mph east

  38. An object weighs 50 pounds and is accelerating at 10 m/s. What is the force on the object? • 500 N

  39. Stored energy that results from the position or shape of an object is called _________ ______. =Potential Energy

  40. The maximum velocity a falling object can achieve… • Terminal Velocity

  41. Air resistance is an example of... • Fluid Friction