Physical Science Bell Ringers Fall semester 2011-12

Tuesday, Thursday Period Start Stop 1 8:25 9:10 2 9:15 9:57 3 10:02 10:44 4 10:49 12:03 5 12:08 12:50 6 12:55 1:37 7 1:42 2:24 FLEX 2:29 3:00

September 23, 2011 Explain what happens if 2 objects have the same speed but different velocities. Turn in 4 bell ringers from this week

September 22, 2011 Explain how forces and motion are related.

September 21, 2011 No Bell Ringer, Mrs. Green at a conference

September 20, 2011 Create a graph showing an object with positive velocity and positive acceleration. Create another line on your graph to indicate an object with constant velocity.

September 19, 2011 Starting from rest, if a car accelerates at 0.90 m/s2, how fast would be moving after 6.0 seconds? a Dv t

September 16, 2011 In yesterday’s acceleration lab, when did your car have the fastest acceleration (when on the low or high incline)? Turn in 5 bell ringers from this week

September 15, 2011 During a race, a sprinter increases from 5.0 m/s to 7.5 m/s over a period of 1.25s.  What is the sprinter’s average acceleration?

September 14, 2011 A dragster in a race accelerated from stop to 40 m/ s by the time it reached the finish line. The dragster moved in a straight line and traveled from the starting line to the finish line in 10.0 sec. What was the acceleration of the dragster?

September 13, 2011 What is the equation to calculate acceleration?

September 12, 2011 If a car travels 100 meters in 3.2 seconds, what is the average speed?

September 9, 2011 1st – What is the difference between average speed and average velocity? 4th & 5th – The fastest trains are magnetically levitated above the rails to avoid friction. The fastest trains travel about 155 miles in a half an hour. What is their average speed in miles/hour? Turn in 4 bell ringers from this week

September 8, 2011 1st = What is the distance and the displacement of the race car drivers in the Indy 500? 4th & 5th = What is the difference between average speed and average velocity?

Check Your Understanding from yesterday September 7, 2011 Check Your Understanding from yesterday What is the displacement of the cross-country team if they begin at the school, run 10 miles and finish back at the school?

September 6, 2011 What is motion?

September 2, 2011 No bell ringer, projector broken Turn in 4 bell ringers from this week

September 1, 2011 Draw a bar graph to illustrate the following information about soccer team wins: Year WINS 2005 2 2006 8 2007 4 2008 7 2009 9

August 31, 2011 On the graph, what percentage of fuel usage is electric and steam?

August 30, 2011 Use the graph in Figure 1-3 to find the number of grams of sugar that will dissolve in 100 grams of water at 80ºC.

August 29, 2011 Arrange each of the following in order from largest to smallest. centimeter kilometers meters micrometers millimeters

August 26, 2011 Convert 1750 ml to liters. Convert 2 ½ liters to cc's (Cubic centimeters) Turn in bell ringers from this week 1st & 4th = 4 5th = 3

August 25, 2011 Complete the following conversions: 38 cm into meters Page 879 #1-4, 6-10 Math Problems Kelvin = °C +273 °C = Kelvin - 273 cm3 = mL August 25, 2011 Complete the following conversions: 38 cm into meters 459 mL into centiliters 1123 kg in grams

August 24, 2011 Convert the following numbers into scientific notation: 348594 0.024094 0.000004595 1025

August 23, 2011 No bell ringer, Mrs. Green absent

August 22, 2011 How many babies did Dr. Jones deliver in 1998? A. 25 C. 45 D. 55 E. 65

Define precision and accuracy. August 19, 2011 Define precision and accuracy. Turn in 5 bell ringers from this week

Name the steps of the scientific method August 18, 2011 Name the steps of the scientific method Add to yesterday’s bell ringer, just write the date and the answer. If you were absent yesterday, write yesterday’s date and “absent” then answer today’s bell ringer.

What does Physical Science cover? August 17, 2011 What does Physical Science cover? Add to yesterday’s bell ringer, just write the date and the answer. If you were absent yesterday, write yesterday’s date and “absent” then answer today’s bell ringer.

What are the three main branches of science? August 16, 2011 What are the three main branches of science? Add to yesterday’s bell ringer, just write the date and the answer. If you were absent yesterday, get out a piece of paper, put your name on it. Write yesterday’s date and “absent” then answer today’s bell ringer.

What is Physical Science? August 15, 2011 Get out a piece of paper, write today’s date and answer the question below Hold on to your paper as we will turn them in on Friday once we have a week of bell ringers What is Physical Science?