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Flashcards for Unit 1

Flashcards for Unit 1. Matter. Anything that has mass & occupies space. A measure of the gravitational pull on matter. You would weigh less on the moon!. Weight. A measure of the quantity of matter. You would have the same mass on the moon. Mass.

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Flashcards for Unit 1

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  1. Flashcards for Unit 1

  2. Matter Anything that has mass & occupies space.

  3. A measure of the gravitational pull on matter. You would weigh less on the moon! Weight

  4. A measure of the quantity of matter. You would have the same mass on the moon. Mass

  5. A series of steps followed to solve problems, including collecting data, forming a hypothesis, testing the hypothesis, and stating conclusions. Scientific Method

  6. A fact you take in with your senses. Observation

  7. A testable statement Hypothesis

  8. An inference Conclusion

  9. Describes what happens. Often stated mathematically. Summarizes many (thousands of) observations. Scientific Law

  10. A model that tries to explain why nature behaves a certain way. May be modified. Theory

  11. 7 How many fundamental units in the SI system?

  12. Fundamental or Base Unit Physical quantity that must be measured. It cannot be calculated.

  13. Derived Unit A unit defined as a combination of fundamental units.

  14. Unit of mass Kilogram Fundamental Unit

  15. Unit of time Second Fundamental Unit

  16. Unit of length Meter Fundamental Unit

  17. Unit of temperature Kelvin Fundamental Unit

  18. Space or Capacity Volume Derived Unit

  19. Metric Unit of Volume 10 cm X 10 cm 10 cm Liter Derived Unit

  20. 1000 cm3 = 1 Liter ? cm3 = 1 Liter Derived Unit

  21. 1000 mL = 1 Liter ? milliliter = 1 Liter Derived Unit

  22. 1 mL = 1 cm3 ? milliliter = 1 cm3 Derived Unit

  23. 1 kilogram What is the mass of 1 liter of pure H2O? Mass/Volume relationship

  24. 1 liter What is the volume of 1 kg of pure H2O? Mass/Volume relationship

  25. 1 gram What is the mass of 1 cm3 of pure H2O? Mass/Volume relationship

  26. 1 cm3 or 1 mL What is the volume of 1 gram of pure H2O? Mass/Volume relationship

  27. Kilogram Second Meter Kelvin Mole Liter, milliliter, cubic centimeter

  28. 273 K Freezing Point of water in the Kelvin scale. Physical Constant

  29. 373 K Boiling Point of water in the Kelvin scale. Physical Constant

  30. 0 C Freezing Point of water in the centigrade scale. Physical Constant

  31. 100 C Boiling Point of water in the centigrade scale. Physical Constant

  32. Another name for freezing point. Ice / water equilibrium

  33. Another name for boiling point. Steam / water equilibrium

  34. 100 cm = 1 meter ? cm in 1 meter Conversion Fact

  35. 1000 mm = 1 meter ? mm in 1 meter Conversion Fact

  36. 1000 m = 1 kilometer ? m in 1 km Conversion Fact

  37. 1000 mg = 1 gram ? mg in 1 g Conversion Fact

  38. Mass / Volume Density

  39. Describes how matter is packed into space. Density

  40. grams / cm3 for solids grams / ml for liquids Units of Density

  41. M D V Density

  42. How close a measured value is to an accepted value. Accuracy

  43. How close a series of measurements are to one another. Precision

  44. Low Scatter High Precision

  45. Measured value – Accepted value x 100% Accepted value Percent Error Table T, reference tables

  46. A measure of the average kinetic energy of the particles of a system. Temperature

  47. K = C + 273 C to K Table T, reference tables

  48. The number is written as a product of 2 numbers: - a number between 1 & 10 - a power of 10 Scientific Notation

  49. Negative exponent so the number is between 0 and 1: 0.002 2 X 10-3

  50. Positive exponent so the number is greater than 1: 500 5 X 102

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