Chapters 1-5

Question 1

What does science depend on?

Answer 1

Material evidence

Question 2

What is physics?

Answer 2

It is the study of matter and energy

Question 3

What is technology

Answer 3

It is an application of science

Question 4

The scientific method

Answer 4

Observe, hypnotize, predict, test, modify, simplify

Question 5

Two main components of the scientific method

Answer 5

Theory and observation

Question 6

A good scientific theory

Answer 6

Develops step by step, is objective, can be tested or disproven, can be modified when new information is found, uses and builds upon existing knowledge.

Question 7

Secrects of the physics

Answer 7

Science is testable and falsifiable

Question 8

What system does the scientific system use?

Answer 8

Metric system

Question 9

Tools of the trade

Answer 9

Telescopes
Spacecraft
Cameras
Computers

Question 10

What is light?

Answer 10

Light is a form of energy that behaves both as a wave and a particle.

Question 11

What travels faster than the speed of sound

Answer 11

Light

Question 12

What is one light-year?

Answer 12

It is the distance light can travel in one year.

Question 13

1ly

Answer 13

9.461*10e12

Question 14

The electromagnetic spectrum

Answer 14

1. Visible light is only one color of light.
2. Light is energy transported as a wave.

Question 15

Electromagnetic radiation

Answer 15

Light is energy transported as a wave.

Question 16

What determines the amount of energy carried by a light wave?

Answer 16

Frequency

Question 17

Science vs pseudoscience

Answer 17

1. Science opens itself up to being disproved while pseudoscience doesn’t.
2. Science uses well-established facts and theories to make new observations. Pseudosciences rarely have revolutionary new developments.

Question 18

e=hf

Answer 18

energy= planck’s constant x frequency
h= 6.626 x 10e-34

Question 19

Why are we interested in learning light?

Answer 19

It gives us information from great distances at high speed.

Question 20

As frequency increases

Answer 20

Energy increases

Question 21

As frequency increases

Answer 21

Wavelength decreases

Question 22

What is light made of?

Answer 22

Waves, particles, energy.

Question 23

Parts of velocity

Answer 23

The magnitude (size, or amount)
The direction (way which the velocity is pointed)

Question 24

Velocity

Answer 24

Change in distance over the change in time v=d/t

Question 25

Acceleration

Answer 25

Change in velocity over change in time a=v/t

Question 26

What happens to acceleration if velocity does not change?

Answer 26

Acceleration is zero

Question 27

If the velocity becomes smaller

Answer 27

Acceleration is negative

Question 28

v = v0 + at

Answer 28

Initial velocity

Question 29

x = x0 + v0t + 1/2 a t2

Answer 29

Initial position

Question 30

What causes the moon to exhibit different phases

Answer 30

The angles between the sun, moon, and earth changes illuminating the moon’s face differently.

Question 31

The cycle of phases from new moon to new moon

Answer 31

Synodic period

Question 32

The revolution period of the moon around the earth

Answer 32

Siderial period

Question 33

What are eclipses?

Answer 33

May occur during a new or full moon when the sun, moon and earth align

Question 34

Types of eclipses

Answer 34

Lunar eclipse and solar eclipse

Question 35

Lunar eclipse

Answer 35

Moon may enter the shadow of the earth

Question 36

Solar eclipse

Answer 36

Earth may intercept the shadow of the moon

Question 37

Types of lunar eclipses

Answer 37

prenumbral
partial
total