Draw a Li atom, next to it, label it’s parts

Draw a Li atom, next to it, label it’s parts

Biology 1 10/13

Extra Credit Question

How much potential energy does a 23kg mass have 6 meters off the ground?Physics 10/13


Science Challenge QuestionDo NOT write on the question!Science Challenge 10/14/09

At which temperature do KBr and KNO3 have the same solubility?

A. 27°C B. 48°C C. 65°C D. 80°C

Which of these shows condensation?

AQBR CS DT

Time’s UP!

Pass back your Science Challenge Questions so they are ready for the next class.

What is Calcium’s oxidation number? + Name an element with which Ca might form an ionic bond.

Biology 1 10/15


Mrs. Dougherty will check your answers! Please sit quietly, you may get out your notes

for class today.

Oxidation Numbers of Metals and Non Oxidation Numbers of Metals and Non MetalsMetals

How does the toy car get the energy to move?

BonusIf the car’s mass is 8.4g and it moves at a velocity of 1.1 m/s, how much energy does it have? (you may use your lab notebook)

Physics 10/15


Mrs. Dougherty will check your answers! Please sit quietly, you may work on your lab

data. We will complete our results and discussion today.

The car is on a “spring” that is compressed when the car is pushed onto it. When you push the button, the potential

energy that was stored in the “spring” is released, making the car move.

If, m = 0.0084 kg and v = 1.1 m/s

Then, KE = ½ x 0.0084 kg x (1.1 m/s)2

KE = 0.0051 J = 5.1 x 10-3 J

Science Challenge QuestionReview

Science Challenge 10/14/09

At which temperature do KBr and KNO3 have the same solubility?

B. 48°C

Which of these shows condensation?

DT

True or False (if it is false, correct the statement)

Water is a polar ion.Biology 1 10/16



for class today.

False

Water is a polar MOLECULE.

True or False A pendulum swinging is a good example of energy being converted from kinetic to potential, and potential to kinetic.Physics 10/16



for class today.

True Energy is constantly transferred between potential and kinetic energies. Theoretically, the total energy of the pendulum never changes. In the real world, a swinging pendulum eventually stops due to friction.

Biology 1 10/19


Matching

1. Cohesion2. Adhesion3. Both Cohesion and

Adhesion

A. Water molecules will “defy” gravity and move up from a plant’s roots into it’s leaves.

B. Water molecules stick to other substances.

C. Water molecules stick to each other.

Time’s Up!

Take out your homework, Mrs. Dougherty will check it and your extra credit question.

You may check your score updates.

Answer to the extra credit questions.1. Cohesion – C. Water molecules stick to

each other, like the demonstration with the overhead projector.

2. Adhesion – B. Water molecules stick to other substances, like the upside down penny.

3. Both cohesion and adhesion – A. Water molecules “defy” gravity, like the flowers.

Physics 10/19

Extra Credit Question A homerun is hit by Ryan Howard, it flies about

375 feet. Another homerun is hit by Chase Utley, it flies

403 feet. Both players run the bases, and tag home to

score a run. Assume they both ran the same distance, the balls were pitched at the same speed and they used similar bats.

Which player did more work to score their run?

Based on the information we have, Chase Utley worked harder for his run.

Since the distance they ran, the ball they hit and the bat they swung are the same, the only difference in work is the amount of force they put on the ball.

Utley would have had to use more energy to increase his force.

Biology 1 10/20


Draw 5 water molecules, show them hydrogen bonding to each other.

Time’s Up!

Take out your definitions that were homework the other night, Mrs. Dougherty will check it and your extra credit question.

You may check your score updates.

Hydrogen bonding. The red is Oxygen (negatively charged), the purple is Hydrogen (positively charged)

Physics 10/20


How much work is done if a 45 kg box is pushed 16 m?

Bonus: If you move the box in 90 seconds, what is your power rating?

SCIENCE CHALLLENGE!!!Follow the directions carefully. Pick up a question sheet and your

index card. Choose ONLY ONLY two questions to answer. Each question is worth one extra credit

point towards your final. Work Quickly… you only have 5

minutes!!!

TIME’S UP

Biology 1 10/22


Draw the structural formula for C4H8

Hint: There is one double bond.

TIME’S UP

The Answer…

C-C=C-CH- -HH H

H H H

H

Physics 10/22


If a Woodchuck could chuck wood, how much work would a Woodchuck do, if his power rating was 20 W and he worked for 60 seconds?

How much energy did he use?

TIME’S UP

The answer…

Power = Worktime

P = 20 W

Time = 60 seconds

W = ? J

timeTime x

So, we have to solve for Work

Time x Power = Work

60 seconds

X 20 watts = ? J

The woodchuck would do 1200 J of work on the wood.

Since Work done is equal to the energy used, (work-energy theorem) the Woodchuck used 1200 J of energy to chuck the wood.

Biology 10/23


1.Two atoms that share electrons are held together by ___________ bonds.

2. A __________ is two or more atoms chemically combined.

3. Atoms of the same element with different numbers of neutrons are____.

TIME’S UP

The Answers…

1. Covalent

2. Compound

3. Isotopes

Biology 10/27


Why do fall leaves stick together when it rains?

TIME’S UP

The Answer…

Adhesion

Physics 10/27


What is the difference between instantaneous speed and average speed?

TIME’S UP

The Answers…

1. Instantaneous speed is your speed at any point in time, for example on the speedometer.

2. Average speed is the speed calculated when you find the distance traveled in an amount of time.

Biology 10/28


Which of the following best defines diffusion?

a. the kinetic energy of motion of particles in an atom

b. the highest energy level in a particle c. the random movements of particles d. net movement of particles from high to low

concentration

TIME’S UP

The Answer…

Which of the following best defines diffusion?

d. net movement of particles from high to low concentration

Physics 10/28


There are three ways to accelerate (change your velocity). See if you can list them.

One is obvious (1 pt) The second is just a little harder to figure out (2 pts) The third is the hardest for students to understand, so

here’s a clue: velocity includes speed and direction (3pts)

TIME’S UP

The Answer…

1. Speed up

2. Slow Down

3. Turn (change your direction)

Biology 10/29


What is kinetic energy?

a. The energy an object has when it is stretched or compressed.

b. the highest energy level in a particle c. The energy that allows a diver to fall to the

earth d. The energy that all objects have internally

and allows movement.

TIME’S UP

The Answer…

What is kinetic energy?

d. The energy that all objects have internally and allows movement.

Physics 10/29


There are three arrows (in Physics these are called vectors…) See if you can guess what they represent.

1.

2.

3.

TIME’S UP

The Answer…

1. A large force pushing right

2. A small force pushing right

3. A force pushing down

Biology 10/30


Why does diffusion occur?

a. Because all matter is made of particles, and some particles have random motion

b. Because of the concentration gradientc. Because diffusion happens between areas

of high to low concentrationsd. Because Mrs. D says it does

TIME’S UP

The Answer…

Why does diffusion occur?

a. Because all matter is made of particles, and some particles have random motion

Physics 10/30


There are two quantities listed below (in Physics these are called scalar quantities…) Look them up in your book and CHANGE them so that they are VECTOR quantities.

1. 300 meters

2. 25 Newtons

TIME’S UP

The Answer…

1. 300 meters NorthOr 300 meters per second

2. 25 Newtons pushing downOr 25 Newtons pushing to the right

Biology 11/3Extra Credit Question

What is this figure illustrating?

a. Brownian motionb. polarity c. dynamic equilibrium d. a concentration

gradient

+ WHY?

TIME’S UP


What is this figure illustrating?

c. dynamic equilibrium

Physics 11/3Extra Credit Question

For each quantity, say whether it is a scalar quantity or a vector quantity.

1. 300 meters west

2. 25 Newtons Down

3. 0.489 mm

4. 0.568 Newtons right

TIME’S UP


What is the difference between displacement and distance?

TIME’S UP


Note the DIFFERENCE!

http://www.learnerstv.com/animation/animation.php?ani=26&cat=Physics


1. ___________________ (pg 158) the random movement of particles because of their energy.

2. ______________________ (pg 159) the net movement of particles from an area of higher concentration to an area of lower concentration. Example: a potato cube in a solution of potassium permanganate shows the potassium permanganate diffusing into the potato cells.

3. _______________________ (pg 160) A condition when diffusion has occurred and the concentration of substances is equal, but the particles continue to move randomly.

TIME’S UP


1. Brownian motion (pg 158) the random movement of particles because of their energy.

2. Diffusion (pg 159) the net movement of particles from an area of higher concentration to an area of lower concentration. Example: a potato cube in a solution of potassium permanganate shows the potassium permanganate diffusing into the potato cells.

3. Dynamic Equilibrium (pg 160) A condition when diffusion has occurred and the concentration of substances is equal, but the particles continue to move randomly.

Review Quiz, Grade Notes, Organic Mac. ppt, SG = HW

Biology 11/9 (11/6 for 2,3,7,8)Extra Credit Question

What is Hydrolysis?

TIME’S UP


Hydrolysis – breaking down a large molecule into 2 smaller molecules by adding H2O.

hydro – water, lysis – to split

Ex: C4H10O + H2O -> C2H6O + C2H6O


What does the symbol Δ stand for?

+ Δ is a letter in what language?

TIME’S UP


Δ stands for change.

It is the Greek letter Delta, or capital D.


Long chains of amino acids connected to each other by a ____________ bond form _______________.

TIME’S UP


Long chains of amino acids connected to each other by a peptide bond form proteins.


A car travels 35 miles in 1.5 hours

What is it’s speed?

TIME’S UP


Speed = ΔD / ΔTS = ?ΔD = 35 milesΔT = 1.5 hours

S = 35 miles / 1.5 hours

S = 23.3 miles/hour


__________ is the chemical reaction by which polymers are formed from _________.

An –H ion and an –OH ion are removed and form a ______ molecule.

TIME’S UP


Long chains of amino acids connected to each other by a peptide bond form proteins.


____________ is the chemical reaction by which polymers are formed from monomers.

An –H ion and an –OH ion are removed and form a ___________ molecule.

TIME’S UP


Condensation is the chemical reaction by which polymers are formed from monomers.

An –H ion and an –OH ion are removed and form a water molecule.


Pos

ition

(m)

Time (s)

What is the slope of the line?

What is the speed of the object?

Does the object’s speed change?

TIME’S UP


Pos

ition

(m)

Time (s)

What is the slope of the line?

What is the speed of the object?

12.5 m/s

Does the object’s speed change?

no

y2-y1 = 50 – 25 m

x2-x1 = 4 – 2 s

25 m

2 s=


1. Glucose and fructose, both with the formula C6H11O6, differ in

A. numbers of atoms.B. arrangement of atoms.C. kinds of atoms.D. arrangement of

electrons.

2. Unlike carbohydrates and lipids, proteins contain

A. Carbon.B. Nitrogen.C. Oxygen.D. Hydrogen.

TIME’S UP


1. Glucose and fructose, both with the formula C6H11O6, differ in

B. arrangement of atoms.

2. Unlike carbohydrates and lipids, proteins contain

B. Nitrogen.


Pos

ition

(m)

Time (s)

What is independent variable?

What is the dependent variable?

TIME’S UP


Pos

ition

(m)

Time (s)

What is independent variable?

Time

What is the dependent variable?

Position


1. How many amino acids are there?

A. 4B. 15C. 20D. unknown

2. What is an amino acid the monomer for?

A. CarbonB. ProteinsC. OxygenD. Nucleic Acids

TIME’S UP


1. How many amino acids are there?

C. 20

2. What is an amino acid the monomer for?

B. Proteins


Dis

tanc

e (m

)

Time (s)

What is the equation to find the slope of a line?

What is the equation to find the speed of an object?

How are they similar?

TIME’S UP


Dis

tanc

e (m

)

Time (s)

What is the equation to find the slope of a line?y2 – y1

x2 – x1

What is the equation to find the speed of an object?

ΔT or T2 – T1

ΔD D2 – D1

How are they similar?Because y is the time and x is the distance, and both equations are finding the difference between two points on the graph.

Draw a Li atom, next to it, label it’s parts

Documents

Transcript of Draw a Li atom, next to it, label it’s parts