Chapter 7 Quiz

Question 1

What is a wave?

Answer 1

A wave is a series of disturbances that propagates through a medium like air or empty space. (for instance, light does not need a medium, but can pass through mediums which may affect its speed).

Question 2

What are the two components of a wave?

Answer 2

Oscillation is the up and down motion of the wave and propagation which is the wave’s length as it moves long ways.

Question 3

What are the two components light is compromised of, and what abilities do these components grant light?

Answer 3

Light is composed of electric and magnetic waves. This allows it to travel without or with a medium.

Question 4

What is wavelength?

Answer 4

The distance between two crests in waves.

Question 5

What is Frequency?

Answer 5

The number of waves that pass a point per second(F)

Question 6

What did Romero(1675) do in astronomy?

Answer 6

He timed the eclipses of Jupiter’s moons. Each moon has a known orbital period. The observed eclipse times came later(16 min) when the Earth was at the far side of the orbit.

Question 7

What is the velocity of light determined by?

Answer 7

The medium its traveling through, or the lack thereof. Light travels slower in some mediums and faster in others.

Question 8

In the Energy of Light, electromagnetic radiation has a certain amount of energy associated with it. What are its components?

Answer 8

E = Energy
h = planck's constant

Question 9

What are Atoms made up of?

Answer 9

Atoms are made up of three particles; Protons Electrons and Neutrons.

Question 10

A Proton is ___ Charged.

Answer 10

Positively

Question 11

An Electron is ___ Charged.

Answer 11

Negatively

Question 12

A Neutron is ___ Charged.

Answer 12

Neutrally

Question 13

The ___ and the ___ reside in the nucleus of an atom while ___ resides outside of the nucleus of an atom.

Answer 13

The Proton and Neutron reside in the nucleus of an atom, while the Electron resides outside of the nucleus of an atom.

Question 14

What is an Isotope?

Answer 14

each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.

Question 15

What is an Ion?

Answer 15

an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

Question 16

When an electron changes orbital levels it either __ s or ___ s energy.

Answer 16

absorbs or releases

Question 17

When an electron moves to a higher orbit, it ___ energy

Answer 17

absorbs energy(absorption)

Question 18

When an electron moves to a lower orbit, it ___ energy.

Answer 18

Releases energy(emission.)

Question 19

When an electron moves to a higher orbit, it must pay the ___ amount to do so. Based on that answer, can an electron move several orbits higher in one go?

Answer 19

The exact amount to do so is required. It can move multiple orbits higher if it has the exact amount to do so.