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Warm Up

Warm Up. Chemistry Warm Up 9/3 (Write the question). Use a book!. Chemistry after school tutoring is in Today ! 1. What are the exponents for : A) Kilo- b) Milli - C) Centi - d) Deci - 2. How many mL are in.03 L?

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Warm Up

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  1. Warm Up

  2. Chemistry Warm Up 9/3 (Write the question). Use a book! • Chemistry after school tutoring is in • Today! • 1. What are theexponentsfor: • A) Kilo- b) Milli- • C) Centi- d) Deci- • 2. HowmanymL are in.03 L? • 3. Convert .046 L tocentiliters. • 4. Whatis 534.1 K equalshowmany in Celsius? • 5.

  3. Temperature Conversions Review (copy everything) • Convert 12.1 ° C to Fahrenheit(F °) and Kelvin. • Convert 76 ° C to K and F ° . • Convert 876.1 K to ° C and F ° . • Convert -34.6 ° C to K and F°. • Convert 658 K to C° and F°. • Memorize these equations for your test tomorrow.

  4. Warm-Up (Write the question. You have 10 minutes) • 1) How many significant figures do each of the following have? • A) .000921 b) .0004367 .00098 • 2) Round to 3 significant figures and express in scientific notation: • A) .0005832 B) .0052312 C) .0976 D) .00426 • 3) What do the prefixes milli-, kilo-, centi-, and deci-stand for? • 4) 26 kg is how many grams?

  5. Warm-Up Answers • 1. A)3 B)4 C)2 • 2A) 5.83 x 10^-4 B) 5.23 x 10 ^-3 C)9.76 x 10 ^-2 D) 4.26 x 10^-3 • 3. Milli= 10^-3, kilo= 10^3, centi = 10^-2 , deci 10^-1 • D) 26,000 grams

  6. Warm Up 9/3 Write the question & the use your book. • Humans belong to what sphere? • Plants belong to what sphere? • Mountains belong to what sphere? • What is the difference between the carbon cycle and water cycle? • What are plate tectonics? • Why are plate tectonics important?

  7. Physics Warm-Up 9/18 (write the question) • 1. What is the average speed of a cheetah running 45m after 5 minutes? • What’s the difference between velocity and speed? • What is Newtons 2nd Law?

  8. Physics Warm-Up 9/10 • Calculate the weight of a football player who weighs 139 kg. • What is the mass of an object with an acceleration of 4 m/s^2 and a mass of 12 Newtons (Don’t’ worry about units here. • How many kilograms does a boy weigh with a mass of 12 Newtons?

  9. Chemistry Warm-Up 9/18 Please write the question. • 1. Convert 64 K to C ° and F °. • 2. Find the density in g/cm^3 for a child who weighs 1,200 grams and has a volume of 112.6 g/mL. • 3. What’s determines whether a substance is a solid, liquid, or gas?

  10. Earth Sci. warm Up 9/18 • What are the 3 types of volcanoes?

  11. Warm – Up Answers • Look on board. • 2. Density = mass/volume 1200g/136.6 g/mL= • 3. Density = mass/volume 56g/2.2 g/mL= • 4. 1 mL = 1 cm ^3

  12. Physics Warm Up 9/17Use the same piece of paper. • 1. What’s the force on an object if it’s mass is 7 g and it’s acceleration is 3.4 m/s^2? • 2. What’s the mass of an object if it’s force is 9.2 N and it’s acceleration is 65 m/s^2?

  13. Physics Warm Up 9/24 • 1) What is the weight in Newtons of an object weighing 28.1 kg? • 2) What is Newtons 3rd Law?

  14. Chemistry Warm up 9/24 • 1) Anything that has mass and volume is called (blank)? • 2)Classify each as a chemical or physical change • A) burning gasoline • B) rusting iron • C) evaporating water • D) decomposing meat

  15. Chem. Page 71 answers • 41)Liquids and gases flow freely and take on the shapes of their containers. Gas molecules move faster than liquid molecules. • 42) far apart • 43) physical • 49) a- physical b-chemical c-physical d-chemical • E-chemical f-chemical g-chemical h-physical i-chemical • J-physical k- chemical

  16. 51) a)hetero b) homo c)hetero d) homo e)hetero

  17. Physics Warm up 9/26: Write the question. Test on Monday ch.4,5,6! • 1. How many forces are acting on your body right now if its at rest? • 2. Which law says Force is the product of mass and acceleration.

  18. Physics Answers • 1.2 • 2. Newtons2nd Law

  19. Pg. 83 #1-14 • 1) yes;yes; 2 forces in one interaction. • 2) Same, because both are part of one interaction. • 3) The floor pushes you as you push the floor. • 4) Reaction is water pushing you forward. • 5) Reaction if arrow pushing on bowstring. • 6) The acceleration is too small due to world’s large mass. • 7) Same, acceleration is large for bullet, small for rifle. • 8) Rocket is propelled by reaction force of gas. • 9) one; one; yes; yes. • 10)No; yes • 11)yes, no they remain together.

  20. Pg. 83 #12-14 • 12) • Friction = f Push = F Pull = P • a) Two: “P” and “f” B) P – f • 13) a) P and F b) F-P c) two: F and P • 14) a) Two F and f b) F-f

  21. Chemistry Warm Up 9/26 • Write this down. • What’s the density for an object with a mass of 10 g and a volume of 100 mL/ Change g to kg. • True or False: Oxygen gas is an element.

  22. Chemistry Density Lab • Work at your table in groups of 2 or 3. DO NOT CHANGE SEATS! 1 person comes up to get your materials. • If you break something let me know ASAP. • Absolutely no horseplay. • Clean – up: • Put all liquids into large graduated cylinder at front of room. • If your hands are dirty, you may wash with water and use paper towels to clean your station. • NO FOOD & NO ELECTRONICS.

  23. Materials: Write this down on the last page of your write up. • Each group will have 1 funnel, 1 graduated cylinder, 3 cups. • 1 cup with green water. • 1 cup with blue corn syrup • 1 cup with yellow/reddish vegetable oil. • Follow your lab instructions. Send up 1 person to get your materials. • YOU MAY BEGIN. HAVE FUN! • Finish your chapter 4 (1st column only pg.105) vocabulary) when done. Due tomorrow in packet #7.

  24. Physics Warm Up 9/27 • Test Monday chapter 4,5,6. • Write the question. • 1) What does Newtons 1st law say (in your own words)? • 2) What is the mass of an object with an acceleration of 42 m/second/second and a force of 7N? (Check your units)

  25. Chemistry Warm Up 9/27Write the question • What was the most dense substance from your lab yesterday? • What was the least dense substance?

  26. Physics Warm Up 10/1 • 1) What’s the formula for momentum? • 2) Please do page 100 • “Plug & Chug” #1-4

  27. Chemistry Warm up 9/30 • Please write the question & use a book. • 1) What is the symbol for the following elements: • a) calcium b) lead c)neon d) gold

  28. Please copy table 4.3 on page 79 • Memorize this table for your quiz on Wednesday, Oct. 2nd!

  29. Page 100 • 1. Mass-inertia; momentum-inertia in motion. • 2. a) truck b)moving skateboard • 3) impact = force. Impulse= force x time • 4)same force for longer time = greater impulse • 5) Impulse-force x

  30. Warm up 10/1 • 1) How many kilograms are in 45 g? • 2) What element is represented by: • A) C b) O c) Ne d) F e) Pb f) Au

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