02nd+Quarter+2013

Girls Should Become Engineers

Study Jams (Science Cartoons)

Lab Safety Regulations and contract

1/13 & 1/14 & 1/15 Density Investigation - Applying the concepts you learned.

1/9 & 1/10 Archimedes' Principle a) Write the principle b) Draw and label figure 12 (Textbook page 429) c) How Submarines Work Pascal's Principle a) Write the principle b) Draw figure 14 on page (Textbook page 434) c) Complete questions 1 through 5 on comparing hydraulic lifts. (Textbook page 435)

Watched elements video: Gold, Copper, Brass, Viewing atoms in metals.

1/8 Introduction to Density Questions Page 429 1a,b,c 2a,b,c

1/6 & 1/7 Paper Rockets vs. Balloon Rockets 1. Tell when the greatest unbalanced force is exerted on the paper rocket; before or during its flight. 2. Tell how and when the first law of motion affects the paper rocket. 3. Tell how and when the third law of motion affects the paper rocket. 4. Tell when the greatest unbalanced force is exerted on the balloon rocket; before or during its flight. 5. Tell how and when the first law of motion affects the balloon rocket. 6. Tell how and when the third law of motion affects the balloon rocket. Putting it all together: 7. Explain the flight of the paper rocket using the first and third laws of motion. 8. Explain the flight of the balloon rocket using the first and third laws of motion. Balloon Rocket Activity 1. Blow up a balloon, tape it to a straw on a string, release the balloon and watch it go. 2. Construct and launch a two stage balloon rocket similar to the picture provided.

12/19 & 12/20 Newton's 3rd Law Activity.

12/18 Revisited the Newton's 2nd Law Lab. Retaught how we calculated the force generated by the elastic band in the catapult. Had the students predict what the outcome of the lab should have been by calculating acceleration for both the 15g and 30g sand bags. Showed students how to convert grams to kilograms. Used the formula: __Force__ = Acceleration mass Gave students a chance to make sure their write up was complete.

Brief introduction to the balloon rocket activity to finish off the week with.

12/16 & 12/17 Reviewed and took the Forces Test. Worked on paper rockets and the 1st Law of Motion activity.

12/12 & 12/13 Reviewed for the Force Test. Newton's 2nd Law of Motion Activity (Catapults)

12/11 Notebook organization and grading. Missing undone work completion.

12/9 & 12/10 1st Law of Motion and Paper Rockets

12/5 & 12/6 Gravity and Momentum

Force Test Answers (Second Five/ Cornell Notes)

12/4 Demonstrations: Newton's 1st & 2nd Laws

Force Test Answers (First Five/Cornell Notes)

12/2 & 12/3

Part 1 Questions P. 392 1a. 1b. 1c. 2a. 2b. 2c. 3. 4. Part 2 Calculating Force (Textbook page 392) What is the net force on a 1,000-kg object accelerating at 3 m/s/s? 1. What net force is needed to accelerate a 25-kg cart at 14 m/s/s? 2. Part Three: Vectors and Net Force

__Vectors and Net Force__ (Figure 3 on textbook page 376 tells how to get the net force for each item below.)

Forces are measured in Newton's or (N). A Newton is the amount of force required to move a one kilogram mass a distance of 1 meter in one second. Draw vectors/arrows on graph paper to represent the following groups of forces. Each box length on the graph paper will equal 1N. Vectors have direction, so draw arrows to the right to represent positive forces and arrows to the left to represent negative forces. For each group, draw an arrow that represents the net force when the group of forces is combined. Each group is numbered. Draw eight groups and net forces on each side of the graph paper. Write the strength of each force above each arrow. (See the arrows in the figures on textbook pages 375 and 376 as examples. An alternative to using graph paper would be to just draw lines and have one centimeter equal a Newton.)



11/21 Part 1 __Question P. 388__ Answer the question on textbook page 388. In pairs, take turns where one person reads and the other listens for the answer to a question. Switch reading and listening with each questions. 1a. 2a. 3a. 4a. 1b. 2b. 3b. 4b. 1c. 2c. 3c.

Information about Gravity.

Part 2 Equal Time Activity

11/20 Draw figures 3, 8, and 10 from Chapter 10 starting on page 376.

11/18 & 19 Part 1 Bell Work 11/18 Tell how these disk shooters work. Student Lead Conferences 1. Bring: Yourself, your notebook, and your planner. 2. Follow the instructions on the Student Survey. 3. Survey items are academic behaviors that lead to success. 4. Set goals with your parents in light of your engagement with the listed academic behaviors.

Part 2 Friction (Two Column Notes) http://physicalsciencecottrell.wikispaces.com/Friction

Part 3 Copy Figure 2 found on textbook page 375. Remember to include the title and words under the force arrows.

11/14 & 15 Retake test

Interpret Data from your Acceleration lab.

11/12 & 13 Reteach 1 (Copy the following.) Acceleration – change in speed and/or direction 1. Speeding up 2. Slowing down 3. Changing direction

An apple is falling at 29.4 m/s after 3 seconds. What is its acceleration?

11/6 & 7 Test Results and review items. Record Scores Acceleration Lab Poster

11/4 & 11/5 Chapter 9 Test

Calculate Acceleration Sheet Use the following data to: 1. Calculate the acceleration of a ballbearing down the first meter of a track. 2. Calculate the acceleration of a ballbearing down the second meter of a track. Use the formula for acceleration found on textbook page 353.

TT = the time it takes a ballbearing to roll down 2 meters of a track. T1 = the time it takes a ballbearing to roll down the first meter of a track. T2 = the time it takes a ballbearing to roll down the second meter of a track.

Determine T2 times. TT - T1 = T2 Helpful worksheet to get average TT, T1, & T2 times.
 * __TT__ ||  ||   ||   || __T1__ ||
 * 4.45 sec ||  ||   ||   || 2.45 sec ||
 * 4.21 sec ||  ||   ||   || 2.31 ||
 * 4.56 sec ||  ||   ||   || 2.51 ||

10/31 Measuring Acceleration Lab

10/30 Explain the reasoning behind the 9 questions for Graph 1. Look at the T-Charts and see how point indicate a story for Graph 2. Show how to manage really big numbers with scientific notation.

1794000000 = 1.794 x 10^9

9. While climbing the mountain, a large spacecraft approached Rusty and began to hover over him. After beaming him aboard, the cute, fuzzy aliens took Rusty 1794000000 km back to their home planet, Bowlus. What was the average velocity of the spacecraft if the journey to Bowlus took 6 hours?

10/28 & 29 Part 1 __ Velocity Problems __ (The Adventures of Rusty and Dusty) Rusty and Dusty went on a canoe trip. Help them get home safely by reading the following problems and solve. Make sure you show your work/setup, label and circle your answers. You may round your answers to the nearest hundredth when necessary. (Use the speed triangle.)

1. Rusty and Dusty left 29 Palms in their truck at 6:00 AM and traveled 80 km to Amboy. What was their average speed if they reached Amboy at 7:00 AM?

2. After having breakfast at Roy’s Diner, Rusty and Dusty headed east to the Colorado River. The trip from Amboy to the river was 120 km and it took them 2.5 hours. What was their average velocity?

3. Once at the river, Rusty threw a stick in the water to see how fast the current was flowing. The stick went 75 m in 50 seconds. What was the speed of the river?

4. Rusty and Dusty planned to canoe 56 km on the first day. What would their average speed have to be if they wanted to stop paddling by 5:00 PM? They started paddling at noon.

5. After five hours of paddling, Rusty and Dusty had canoed 36 km south from where they started. What was their average velocity?

6. As it was getting dark, Rusty could tell that the river was moving more swiftly. Rusty figured that they were traveling at 25 m/s. At this speed, what distance would they cover in 60 seconds?

7. After hitting some vicious rapids, Rusty and Dusty’s canoe had tipped over. They lost everything, including themselves. Once on shore, Dusty remembered that there was a small town about 10 km back upstream. If Dusty hikes at a speed of 4 km/h, how long would it take him to travel to the small town?

8. Rusty had no idea where he was. To determine his location, he decided to climb a small mountain. The distance to the top was 1500m. If Rusty climbs at a speed of 500 m/h, how long would it take him to climb to the top of the mountain?

9. While climbing the mountain, a large spacecraft approached Rusty and began to hover over him. After beaming him aboard, the cute, fuzzy aliens took Rusty 1794000000 km back to their home planet, Bowlus. What was the average velocity of the spacecraft if the journey to Bowlus took 6 hours?

10. After judging their annual “chili cook-off,” the aliens of Bowlus simply beamed Rusty back into his living room on Earth. This time, the trip only took an amazing 60 seconds. What was Rusty’s average speed back to Earth? Recall that the distance was 1794000000 km.

11. When Dusty reached the small town, he found a mule that he could ride home on. If the mule averages a speed of 3 km/h, how many hours will it take Dusty to ride the 275 km back to 29 Palms?

12. In order to give the mule a rest, Dusty only traveled 8 hours per day. Using this information and your answer for #11, calculate how many days it took Dusty to get home. (Created by Jason E. M. Schmit)

Part 2 Graph the T-Chart below and then answer the questions on the next page in your Science Notebook. X = minutes and Y = Kilometers (Hint: use intervals of 4 on the X axis and 1 on the Y axis.) . 1. Which segment shows no speed? 2. Which segment shows the slowest speed? 3. Which segment shows the fastest speed? 4. Which segments show starting? 5. Which segment shows speeding up? 6. Which segment shows a speed of 0.25 km/min? 7. Which segment shows distance staying the same? 8. Which segment shows distance decreasing or heading back towards the start? 9. Which segment shows a velocity opposite of all the other segments?

Graph the following two T-Charts on the same graph/set of axis. Then write a story describing Belinda's and Bob's motion? Make up a story about where they are going and why their velocities were changing. . T = time in minutes and D = distance in kilometers. T is the independent variable. (Hint: use intervals of 4 on the X axis and 1 on the Y axis.) Which segment shows a velocity opposite of all the other segments? . .  (Created by Jason E. M. Schmit) .

10/24 & 25 Notebook Check pages 26, 27, 28, 31, 32, 33

Finish: Interpreting Motion Graphs

__ Velocity Problems __ (Use SNB page 36) 1. After being launched from a canon, Elmo traveled 5 km in 4 seconds. What was Elmo’s average speed? 2. Big Bird tried to fly south for the winter. If he travels at an average speed of 2 km/h, how far will he have gone in 12 hours? 3. Oscar the Grouch drove his Grouch-mobile at a speed of 75 km/h. If he maintains this speed, how much time would it take him to travel 10 km? 4. Grover was running south on Sesame Street. What was his velocity if he traveled 1 km in 10 minutes?

__ 9th chapter 3rd Section Notes __ (Use SNB page 37)

10/23 Notebook Check Extra Study Help:

10/21 & 22 __ Homework __ if you haven't finished this: Motion Terms (Use SNB page 28) Define and make a visual representation for each word. Speed, Average speed, Instantaneous speed, Velocity, Slope, Acceleration

Part 1 9-2 Notes (Use SNB page 35)

Part 2 Interpreting Motion Graphs 1 (Use SNB page 36)