Physical Science Exam 3

Front 1

If two balls have the same mass but different sizes, which has the larger density

Back 1

The smaller one

Front 2

Playdow- Elastic or plastic?

Back 2

Plastic

Front 3

Rubberbands

Back 3

Elastic

Front 4

With tension, compression and shear which state of matter does so with the most difficulty?

Back 4

Solids

Front 5

Why does an apple look red?

Back 5

It absorbs all the other colors and reflects red

Front 6

If you have a spectrum made up of descrete bright lines, what kind of spectrum is it?

Back 6

Emission spectrum

Front 7

Which element was first discovered in the solar spectrum?

Back 7

Helium- First found at the sun

Front 8

What do we call materials that become conductors when disolved in water?

Back 8

Ionic conductors- Salt

Front 9

If a gas mixture is at a uniform temperature, the molecules have the same.....

Back 9

Avg Kinetic Energy

Front 10

Who modeled the continous spectre of hot objects?

Back 10

Planc

Front 11

Who modeled the spectrum of hydrogen?

Back 11

Bohr

Front 12

Who came up with a mathematical formula for the hydrogen spectrum?

Back 12

Reidburg

Front 13

Who did the alpha particle gold foil experiment-solar system model?

Back 13

Rutherford

Front 14

Who did the oil drop experiment?

Back 14

Milikan

Front 15

Who did the voltage tube experiments-plum pudding model

Back 15

JJ Thompson

Front 16

Who first used the spectrum elements to identify materials?

Back 16

Kirchof

Front 17

Zero energy levels- How many colored photons will you have? (How many colored levels)

Back 17

0-

If you have 1 level still zero- cant jump

(remember the level drawing)

Front 18

An allowed bohr orbit- are they energy fields, particles or standing waves

Back 18

Standing waves

Front 19

It is impossible to determine both _____ and ______ of an electron simultaneously.

Back 19

Position and momentum

Front 20

Suppose you have a wave pulse, traveling. Do you know the position well or the momentum?

Back 20

The position

Front 21

What levels in hydrogen are we considering for the red line?

Back 21

3 and 2

Front 22

Who first succeeded in measuring the speed of light?

Back 22

Romer and (hoigen)

Front 23

Order of the electromagnetic spectrum

Back 23

radio-microwave-infared-visible light-uv-xray-gamma rays

Front 24

To explain refraction do we need the wave model of light or the particle model?

Back 24

Wave

Front 25

To explain the double slit interferance patern do we need the particle or wave model?

Back 25

Wave

Front 26

To explain the photo electric effect? Wave or particle>

Back 26

Particle

Front 27

Which has more energy? red or blue photon?

Back 27

Blue Photon?

Front 28

If light were a particle, would you expect the pattern on a screen to get bigger or smaller with a smaller opening?

Back 28

Smaller, if it were acting like a wave- larger

Front 29

If light were a WAVE, and you took a photo, and developed it under low light. Would you see a dim but complete image or random dotts?

Back 29

Dim but complete

Front 30

IF light were a wave would electrons be ejected regardless of the color? or would the color matter?

Back 30

Color Matters

Front 31

If the gases O2 and CO2 have the same temperature, which will be going faster?

Back 31

O2

Front 32

In which of the following will the surroundings warm up? Just as water evaporates, or just before it begins to snow?

Back 32

Just before it begins to snow?

Front 33

If the air current out of your mouth expands? Then the temperature of the air that expands....

Back 33

goes down

Front 34

The more significant reason why it takes longer to cook soup at high elevation is because its colder or lower air pressure?

Back 34

lower air pressure

Front 35

How does persperation help you cool off

Back 35

the water evaporating

Front 36

The ideal gas law PV=MKT

T goes up then Volume

Back 36

Volume goes up

Front 37

PV=MKT

Temp constant V goes up

Back 37

P goes down

Front 38

Photons will be emitted when they what? Rise, drop or accelerate in their orbit?

Back 38

When they drop levels

Front 39

What was the major theoretical problem with the solar system model?

Back 39

Why dont the electrons radiate?

Front 40

IF you fire bullets from a rickety machinge gun....(indisputable particles) through two slits. How many peaks do you get on the wall?

Back 40

Multiple

Front 41

What if you fire electrons through two or more narrow slits? How many wave patterns?

Back 41

Multiple

Front 42

True or false. Its physically possible to get two peaks and know which of the two slits the electron travels through?

Back 42

False wave function goes through both

Front 43

The energy of a photon h. If it were different, and people acted like wave patterns how would it be different?

Back 43

It would be bigger-h

Front 44

Whose equation gives the shapes for orbitals?

Back 44

Shrodinger

Front 45

What are the orbital letters and shapes?

Back 45

S-sphere P-Dumbell D- Clover F- crazy weird

Front 46

True or false- in the quantum mechanical model the electron was thought to be moving within the shape or on the surface

Back 46

False

Front 47

How many p orbital orientations are there in the second shell?

Back 47

3

each can have 2 electrons for a total of 6 electrons

Front 48

How many d orbital orientations are there in the third shell?

Back 48

5

Front 49

How many f orbital orientations are there in the fourth shell?

Back 49

7 for total of 14 electrons