science inquiry a – conceptual physics 1 inquiry & patterns a patterns approach to increase...

Science Inquiry A – Conceptual Physics 1 Inquiry & Patterns

A Patterns Approach to Increase the Rigor and make Evidence-Based

Reasoning and Data-Informed Decision Making

Bradford Hill

Sujata Ganpule


Inquiry Cube

1. What qualities do scientists have? What are

scientists like?

2. Draw what a scientist looks like.

3. How do Scientist do their work? How would

they describe a scientific investigation?


Inquiry Cube

4. What are questions we can investigate

about this cube?

Do not touch, turn, lift, or move the cube in any way.


Inquiry Cube

5. What is science?

(How is it different than asking your best friend or looking something up on Wikipedia?)


Science is…Science originates in questions about the world.



Science uses observations to construct explanations (answers to the questions). The more observations you had that support your proposed explanation, the stronger your explanation, even if you could not absolutely confirm the answer by examining the bottom of the cube.




Scientist make their explanations public through presentations at professional meetings and journals.





Scientists present their explanations and critique the explanations proposed by other scientists.


Inquiry Cube

Form research groups for the second investigation.

Do not touch, turn, lift, or move the cube in any way.


Inquiry Cube6. First Hypothesis: (just guess) confidence:

7. Data:

8. Patterns:

LowMediumHigh


Inquiry Cube

Research groups publicly share your

explanations.

9. What is the benefit to hearing other research

groups’ ideas?

What is another test we could perform to

determine with even more confidence (less

error) what is on the bottom?


Inquiry Cube

Scientist use patterns in data to make predictions and then design an experiment to assess the accuracy of their prediction. This process can also produce additional data.

10. Use your observations (data) to make a prediction of the number in the upper-right corner of the bottom.


Inquiry Cube

With your limited funding you are able to purchase a small amount of technology and other equipment in order to test your prediction.


Inquiry Cube

11. Final Hypothesis confidence:LowMediumHigh


Inquiry Cube

*12. Describe how your confidence changed from first hypothesis and final hypothesis and why?

*13. How is this activity like real science?

*14. What about science doesn’t this activity capture?


Stretching Spring Experiment


Stretching Spring Experiment

Conclusion:

Since the best-fit line of our data is linear, we conclude that there is a linear relationship between how much the spring stretches and the mass hung from the spring. This can be represented mathematically

Stretch of Spring = 0.053 * Mass Hung.

So I predict that for a 500g mass my spring will stretch _______.


Pendulum Sample Data Value of controlled variables:

Length (m)

+/- 0.1

Period of Pendulum (s) +/- 0.3 Average

Period (s)

Uncertainty in Average Period (s)

Timer 1

Timer 2

Timer 3

Timer 4

Timer 5

0.0 0 0 0 0 0 0 0

0.5 1.2 1.4 1.3 1.2 1.4 1.3 0.1

1.0 1.9 1.9 1.9 2.2 2.1 2.0 0.2

1.5 2.4 2.3 2.5 2.6 2.7 2.5 0.2

2.0 2.9 2.8 2.7 2.9 2.7 2.8 0.1

2.5 3.0 3.4 3.3 3.2 3.2 3.2 0.2

Data:θ = 15° m = 200g

€

tavg =t1 +2 +t33

€

U = range2


Pendulum ExperimentConclusion:

Since the best-fit line of our data is quadratic, we conclude that there is a quadratic relationship between the period of the pendulum and the length of the pendulum. This can be represented mathematically

Length of Pendulum = _____ * (Period)2

So I predict the period of a 5.0 meter pendulum is _______.


Getting the Period

€

Length = 0.25* (Period)2

Use Graph, Length = 5.0 m

€

Length0.25 = (Period)

2

€

Length0.25 = Period

or


Paragraph

Science is finding patterns in nature and then using those patterns to accurately predict the future. For instance, one pattern in nature that nearly everyone has discovered is that objects on earth, when unsupported, fall. We have named this pattern gravity. And we can predict that tomorrow if you were to hold up a marker then let it go, that marker would fall to the floor. Now scientists and engineers have discovered many patterns and have gone as far as creating a device, from materials found in the earth’s crust, that if tomorrow you touch in a certain way and then talk towards it a loved one can hear your voice miles away! We, of course, call this amazing combination of stuff from the ground a cell phone.


Paragraph Experiment – Real Data

Trial 1 2 3 4 5

Width of Paragraph (cm)

+/- 0.3 10.8 5.5 7.7 23.3 15.3

Height of Paragraph (cm)

+/- 0.6 6.4 13.0 9.5 2.9 4.4

Value of controlled variables:

Helvetica, size 12, patterns paragraph


Paragraph Experiment

€

Height =Width

71


Paragraph ExperimentConclusion:

Since the best-fit line of our data is inverse, we conclude that there is a inverse relationship between the height of the paragraph and the width of the paragraph. This can be represented mathematically

So I predict for a 33.5 cm wide paragraph the height will be _____cm.

€

Height =Width

Your A


Logger Pro with Good Data


Make Your Science Inq A Toolbox

Science Inquiry A

4 – Interaction & Forces

3 – Energy & Interactions

2 – Motion & Change

1 – Patterns in Nature

Your Name

Fold Here

5 – Engineering A Bridge


Pattern: Linear

If the mass is doubled, the

stretch of the spring will

double.

The slope tells us something about the strength of

spring that is the spring that

stretches 0.05 cm for every gram

hung on it.

y= mx+b

so when=x x , y y

and when=x x, y yStr

etch

of s

prin

g

(cm

)

Mass (g)

Slope

= 0.0

5 cm

/g

x intercept = 0no mass, no stretch

Str

etch


Pattern: Linear

If the mass is doubled, the

stretch of the spring will

double.

y= mx+b

so when=x x , y y

and when=x x, y yStr

etch

of s

prin

g

(cm

)

Mass (g)

x intercept = 0no mass, no stretch

Str

etch


Pattern: Quadratic

For the pendulum, if the period

is doubled then the length

is quadrupled.

y= ax2

Period

Le

ng

th o

f p

en

du

lum

and when= x x , y yso when=x x , y y

4L

L

P

2P

1s 2s

L

4L


Pattern: Inverse

For the same paragraph, if

you double the width of the paragraph, than the height

will decrease by half.

y= ax

He

igh

t of

par

ag

raph

Width of paragraph

so when=x x , y y

and when= x x , y y

Blah blah blah blah blah blah blah blah blah blah blah Blah blah blah blah blah blah blah blah blah blah blah




Pattern: Inverse Square

For a square piece of paper in front of a light, if you double the

distance from the light the size of the shadow will become 4x

times smaller.

y=ax2

Distance to light source

Siz

e o

f sh

ado

w

so when=x x , y y

and when=x x , y y


Flat Line

Period never changes.

Angle of Release

Period Period = PeriodAngle = 0,15, or 453.7


Put the new Tool in your Science Inq A Toolbox

Science Inquiry A5 – Engineering: Windmills & Bridges

4 – Interactions & Forces




Your Name


Distance vs Timefor a Constant Velocity

When t is doubled, the distance will double.

y = mx+b

d

t

Slope= Speed d = vt

Pattern: Linear


Velocity vs TimeConstant Velocity

v doesn’t change, so v = v

v

t

v = v

Pattern: Flat Line


Distance vs Timewith a Constant Acceleration

When t is doubled then d is

quadrupled.

t

d

d = at21

2

Pattern: Quadratic

1 2

1

4


Velocity vs Timewith a Constant Acceleration

When t is doubled, v will double.

v

t

Slope= Acceleration

v = at

Pattern: Linear

1

2

1 2








Your Name


Gravitational Potential Energy vs HeightPattern: Linear

When Eg is doubled, the

height is doubled3

6

3 6

€

Eg = mghEg


Kinetic Energy vs VelocityPattern: Quadratic

When v is doubled,

EK is quadrupled

1 2

1

4

€

Ek =12mv

2

EK

v


Conservation of EnergyPattern: Flat Line

As Eg goes down Ek goes up,

so ET is always the same

1 2

1

4

€

ET = Eg + EkET

h

€

ETBefore = ETAfter








Your Name


Pattern: Linear

Acceleration vs Net Force

When Force is doubled,

acceleration is doubled

Fa

m y = mx+b2

2F

am

2

2

4

4


Pattern: Inverse

Acceleration vs Mass

When mass is doubled, acceleration will decrease by half

ay

x

Fa

m

2 2

a F

m

4

42

2

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