Physical Science Bell RingersFall semester2011-12

Period

Start Stop

1 8:25 9:102 9:15 9:573 10:02 10:444 10:49 12:035 12:08 12:506 12:55 1:377 1:42 2:24

FLEX 2:29 3:00

Tuesday, Thursday

September 23, 2011Explain what happens if 2 objects have the same speed but different velocities.

Turn in 4 bell ringers from this week

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

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

conference

September 20, 2011Create 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, 2011Starting from rest, if a car accelerates at 0.90 m/s2, how fast would be moving after 6.0 seconds?

a

v

t

September 16, 2011In 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, 2011During 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, 2011What is the equation to calculate acceleration?

September 12, 2011If 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?

September 7, 2011Check Your Understanding from

yesterdayWhat 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, 2011What 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, 2011On 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, 2011Convert 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, 2011Complete the following conversions:38 cm into meters459 mL into centiliters1123 kg in grams

Page 879 #1-4, 6-10 Math Problems

Kelvin = °C +273°C = Kelvin - 273cm3 = mL

August 24, 2011Convert the following numbers into scientific notation:3485940.0240940.0000045951025

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

August 22, 2011How many babies did Dr. Jones

deliver in 1998?A. 25B. 35C. 45D. 55E. 65

August 19, 2011

Define precision and accuracy.

Turn in 5 bell ringers from this week

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.

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.

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.

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?