Openers

Conceptual Physics

Copy down and decide if each statement is true or false and explain why.

1. Science is a system of beliefs2. Experiments are used to prove ideas3. All scientific ideas are discovered through

experiments4. When a theory has enough evidence, it

becomes a law5. Scientific ideas can be modified or disproved,

but never proved.

Opener 8/28

Get out your homework so that I can check it.

Opener: Compare and contrast observation and inference. How are they similar? How are they different? At least 4 sentences.

Opener 8/29

1. What makes something scientific? 2. What is science based on?3. What is science NOT based on?

Opener 8/30 3rd Period

• Describe a time when you did an experiment in a science class. What happened? What steps did you take?

9/6/12

• Please sit at your regular assigned table. The only thing different is some of the tables have been reversed.

• Opener:– What does responsible behavior look like in

science class / lab? Come up with at least five examples.

9/7/12

• Remember to turn in your homework• Opener:– Why is it important that we all use the same units

for measurement?– What would happen if we didn’t?

9/10/12

• Turn in your homework to the tray• Opener: Read the quote on the board and

explain what it means. Think about:– What are the “rules of the game”?– How does this relate to school?

9/11/12

• Have your homework out on your desk so that I can check it. We will be going over it.

• Opener:– How are volume and mass different?– Come up with at least 3 ideas. – Is it possible for two objects to have the same

volume, but different masses?

9/12/12

• Turn in your lab from yesterday with your completed part 3 and graph

• Opener:– What makes things float? Or sink?– Explain your ideas.

9/13/12

• Please get out your lab from yesterday.• Have a seat with your group and continue

working. Have all your group members seated at the beginning of class and you will earn a ticket.

• No opener today

9/14/12

• Turn in your vocab review worksheet if you did not already

• Your Review Problems worksheet is due on Monday

• Opener: John has a 100-mL graduated cylinder, a balance, some water and a small rock. He wants to find the density of the rock. How would he do this? Use as much detail as possible.

9/17

• Please reflect on the quote on the wall. Write a paragraph that tells what this quote means to you.

9/18

• Think of an example of sinking or floating in everyday life. Explain this example using “density.”

9/19

• Complete the conversions below:– 15 mL = __________ L– 29 km = __________ cm– 4.2 mg = __________ g– 200 cm = __________ dm– 150 g = __________ kg– 14 dL = __________ cL

9/24

• Have your homework out so I can check it• Please answer this question in complete

sentences:– What is the difference between force and net

force? How do you find the net force?

9/25

• Write about 3 things that you learned yesterday about sailboats

Pop Quiz (sort of)

• A box is being pushed from the right with a force of 21 N and from the left with a force of 13 N. 1. Draw both of these forces2. In a separate drawing, draw the net force acting

on the box3. Are the forces balanced or unbalanced.

9/26

• Turn in your worksheet from yesterday if you did not do so already.

• Answer this question in complete sentences. – What makes boats float???

Expectations for Groups

• Remain seated with your group• Work quietly• Compromise, work together and get along• No horseplay• If you need something, raise your hand

9/27

• Try to list as many of the different types of forces as you can by memory. Then, look at your list and see which ones you didn’t remember and write those down as well.

9/28

• Get our your data sheet from yesterday so we can discuss it

• Opener:– What different things could possible affect the

speed of your boat? List as many as you can think of.

10/1

• Do not turn your homework in today. Have your homework out so that I can check it.

• Opener: According to Newton’s 1st Law, objects with greater mass have more inertia. What does this mean for your sailboats?

10/2

• Turn in your worksheet from yesterday if you took it home for homework.

• Opener:1. An object with a mass of 10 kg is pushed with a

force of 2 N. Calculate the acceleration that will happen.

2. If the object has a mass of 20 kg, what will the acceleration be?

10/3

• Please turn in your Newton’s 3rd Law Packet from yesterday.

• Opener:– How are the formulas for weight and force

similar? How are they different?• Weight: Fg = mg• Force: F = ma

10/4

• Turn in your study guide• Check the list of things you should have

turned in on the front board.• You have 5 minutes to study to prepare for

your benchmark

10/5

• Turn in your “Friction Reader” from yesterday if you did not do so already

• Opener:– What is friction and how does it affect the motion

of your sailboat?

10/8

• Opener: Please reflect on the quote on the wall. Write a 5 sentence reflection. What does this mean? How does it relate to school / your life?

10/9

• Make sure you have turned in your “Newton’s 3rd Law” packet and your “Friction Reader.” Many of you are missing these assignments!

• Opener:– How do friction and applied force compare to

each other when the boat is moving at a constant speed? Are they balanced or unbalanced? Why?

10/10

• Winners of 2nd Round of Testing:– Deshawn, Yuri, Keonte, Arthur (3rd period)– Nya, Mynish, Shariah (4th period)

• What is creativity? How creative was your design? Why is creativity important?

10/11

• No opener today• Please get your binder and have a seat. We will

be going to the computer lab as soon as everyone is settled.

• Turn in your Vocab Review Worksheet. It is due today.

• If you would like to take your boat home, come get it at the end of the day. Otherwise, they will be recycled.

10/12/12

• Please make sure you have turned in your Vocab Review Worksheet and your Sailboat Test Data Sheet 2

• Vocab quiz will be first today (before lunch for 3rd period)

• You have 10 minutes to study

10/15/12

• Opener:– John is riding in a go cart. He is holding an ice

cream cone piled high with scoops. When he makes a sharp right turn, what happens to the scoops of ice cream? Which of Newton’s Laws explains why?

• Please be sure to sharpen your pencil before our quiz today.

Opener – 10/17

• If an object starts at position 4 and ends at position 10, what is its displacement?

∆x = xf – xi

∆x = displacement xf = ending point xi = starting point

Notes – 10/17• The first way to measure motion or movement is

called displacement– Displacement is how far an object is from where it started– It is different from distance because it also tells you the

direction something went– Positive number = forward direction– Negative number = backwards direction

∆x = xf – xi

∆x = displacement xf = ending point xi = starting point

Opener – 10/18

• Do you think the inventors of the roller coaster were white or black? Why do you think so?

• Does the fact that Mr. Wurz is white affect the way you view this class?

Reflection

• Reflect on the video you just saw. Underneath your opener for today, please write down your reflection on the video you just saw. What are your thoughts and feelings?

Opener – 10/19

• A girl is hanging from a rope. The force of gravity acting on her is 200 Newtons. If all the forces acting on her are balanced and the net force is 0, what is the force of tension in the rope pulling her up? Draw a diagram of these two forces acting on her and show that the net force is 0.