Exam 1

Question 0

First postulate of special relativity

Answer 0

Laws of physics hold true for all frames of reference

Question 1

Quantum leap

Answer 1

When an electron is agitated it jumps to the next fixed orbit and as it moves back down it emits energy

Question 2

Entanglement

Answer 2

Two particles are linked no matter how far apart and share properties and change based off one another

Question 3

Gravity and space

Answer 3

Gravity is space itself being warped by objects, like fabric
The bigger the object the larger an area warps

Question 4

Ether

Answer 4

An invisible medium filling empty space between objects

Ultimately disregarded

Question 5

Arrow of time moving forward

Answer 5

Entropy theory
Perceive ordered states becoming disorder
Started with the Big Bang and becoming more and more disorganized

Question 6

Higgs field

Answer 6

Space not empty but filled with tiny particles

These particles gain mass as they struggle to move through space

Question 7

Thomas young experiment

Answer 7

Double split experiment
Light acted like a wave when passing through two slits creating bans of light and dark.
Wave crests combined and other areas canceled each other out

Question 8

Gravity effect on space time

Answer 8

Gravity slows passage of space time

The stronger the gravitational pull the slower time will move

Question 9

Dark energy concept

Answer 9

Questioning of whether the universe is still expanding slowly led to the concept that dark energy is a force continuously forcing the universe sort into a disorganized state

Question 10

Define speed

Answer 10

Distance traveled in a given amount of time

Question 11

Empedocles light

Answer 11

5th century by Greece

Light as emerging from our eyes and illuminating objects before unlike fire

Question 12

Colors by addition

Answer 12

Red green and blue light combine in various ways to make visible colors

Question 13

Wavelength

Answer 13

Distance between any two corespondent points on successive waves

Question 14

Second postulate of special relativity

Answer 14

No matter what frame of reference the speed of light is measured as a constant

Question 15

Photons produced

Answer 15

When a. Electron flaws to normal orbital levels it produces energy in the form of a photon that is the same frequency and color of the electron it came from

Question 16

Einstein and Bohr disagreement

Answer 16

Whether nature of reality determined by chance

Uncertainty governed by observation or not. Bohr said yes and was correct

Question 17

Canary island experiment

Answer 17

Teleported a copy of a photo to separate island using properties of entangled particles

Question 18

Absorption

Answer 18

Light hits an object with similar frequency of electrons and speeds up
Absorbed light is no longer visible and only others bounce back

Question 19

Time dilation

Answer 19

Time slows with motion. Slower based on frame of reference

Speed of light constant not time

Question 20

Gyroscope experiment showed what?

Answer 20

Space acts like a fabric

Earths Gravity is actually shaping the space around it causing objects in orbit to point toward it

Question 21

Refraction

Answer 21

Light passes through one transparent medium to a second transparent medium (like air and water) change in medium changes speed of light and cause it to bend

Question 22

How might we Travel to past

Answer 22

Using war hole that connects two parts of space time

Question 23

Electromagnetic spectrum

Answer 23

Range of light frequencies and energies

For visible light Red has least energy and violet has highest

Question 24

Frame of reference

Answer 24

Where you are as a person or observer. You have a particular position. All motion you see is relevant to your frame of reference

Question 25

Colors by subtraction

Answer 25

Absorption properties, some frequencies of light are absorbed by object hitting and are no longer visible, light of rest of colors is what is reflected back

Question 26

Newtons concept of light

Answer 26

Light in the form of particles because it travels in straight lines and bounces off objects much like a ball

Question 27

Interference

Answer 27

Interaction of waves that are similar to each other in frequency

Question 28

Diffraction

Answer 28

Light passes around the edge of an object and slightly bends

Question 29

Space time

Answer 29

Space And time are connected and directly effect each other. Motion through space effects the passage of time Motion slows the passage of time

Question 30

Alhazen light

Answer 30

Year 965 Believed light was independent from the eyes Instead suggested light is reflected from source, off of objects and seen by eyes

Question 31

Euleces light

Answer 31

300 bce | Light comes from our eyes but is projected in straight lines

Question 32

Frequencies of light

Answer 32

Number of waves that pass through a point in space during any given time interval Frequencies of visible light determines color

Question 33

Scattering

Answer 33

Light strikes a rough surface instead of smooth and bounces back at many different angles and directions

Question 34

Holograms and blackholes

Answer 34

When objects fall into black hole a copy of its information is made outside the hole which could be interpreted as a hologram like replica of the original object

Question 35

Reflection

Answer 35

Light bounces off smooth surface and bounces back at equal angel

Question 36

Double split experiment

Answer 36

Sowed electrons act like both particle and waves. Slipping and combining peaks and valleys as travel through slits making a barcode like pattern. When directly observer however, acts like particle

Question 37

Possible travel to the future

Answer 37

Using black hole, where gravitational pull is stronger and the. Return to earth with weaker gravitational pull, time will have moved faster on earth compared to your time at black hole

Question 38

Length contraction

Answer 38

Length measures shrinks with motion, would seem smaller if it were still

Question 39

Light and space time

Answer 39

Combined speed of any objects motion through time and space always equals the speed of light Speed of light as constant

Question 40

Fundamental properties of the universe

Answer 40

Space, time, matter, motion, mass, Gravity, energy, light