Circuits
What is a pathway for electrons
a circuit
What is the net movement of electric charges in a single direction...
Electric current
What is a wave?
A disturbance in matter than transfers energy
An EM wave that is slow but travels far..
radio waves/frequency
Galaxies that are redshifted are:
moving away from earth
There can be considered star "nuseries" and where stars first start their formation...
Molecular Clouds/Dust
What opposes the flow of electrons measured in Ohms?
Resistance
A closed path that electric current can follow is called
an electric circuit
what is the equation for wave frequency?
f= v/λ
EM waves with longer wavelengths carry more energy.
True or False
False
The most abundant element in the universe today is:
Hydrogen
this star is very hot, but not bright
white dwarf
conductors
this contains an anode and cathode
batteries
a surface wave is categorized as a
mechanical wave
This EM wave can cause the most damage...
gamma rays
a group of a million or billions of stars is called...
galaxies
what force is responsible for the creation of stars?
gravity
What is electricity?
The flow of electrons (or electric charge)
What is a parallel circuit?
a current that travels multiple paths, or one break that does not stop the flow
List at least two different types of waves
Diffraction, refraction, reflection, absorption, or interference
An EM wave has this property that showcases, wave and particle...
wave-particle duality
The remaining energy from the Big Bang is called this...
CMB - Cosmic Microwave Background radition
in the beginning, stars are giant balls of hot gas made mostly of...
hydrogen and helium
Potential difference is
voltage
This circuit travels in a single path and one break will stop the flow
Are EM waves longitudinal or transverse
transverse
the entire range of electromagnetic waves is called...
electromagnetic spectrum
Which scientist was responsible for contributing to the findings of the Big Bang Theory?
Edwin Hubble
once this element is created in the star's core, the star goes supernova...
The relationship between resistance, current, and voltage is known as...
Ohms Law
Where electrons cannot flow and cannot complete the path
an open circuit
Mechanical waves have to travel through a medium.
True or False
True
what does the term ionizing mean?
as the source of the waves moves, it changes frequency and length to the observe, known as the
doppler effect
this process where hydrogen nuclei collide and combine with helium in their cores, and gives off massive amounts of energy is known as...
nuclear fusion