Periodic table
what element has the symbol O
Oxygen O2
What particle has a positive charge
The distance between two consecutive crests or troughs of a wave.
What is wavelength
Unlike mechanical waves, these waves can travel through a vacuum and do not require a medium.
What are electromagnetic waves?
This property of matter resists changes in motion.
(Inertia / Mass)
Whaty element is used in pencils
Carbon(graphite)
what does the atomic number represent
Number of Protons
This term refers to the number of waves that pass a fixed point in one second, measured in Hertz.
What is frequency
This type of electromagnetic radiation has the longest wavelength and is used for broadcasting cell phone and television signals.
What are radio waves
This is the net force required to accelerate a 2 kg mass at 5 m/s².
10 Newtons
Which family includes Lithium
Alkali Metals
What do valence electrons do
Chemcial reactivity/bonding
A disturbance that travels through a medium (like air or water) but does not transport the medium itself.
What is a mechanical wave?
This phenomenon occurs when shorter-wavelength electromagnetic radiation (like UV light) hits certain materials and causes them to emit electrons.
What is the photoelectric effect?
this law states that acceleration equals net force divided by mass.
Newton's Second Law)
what element has an atomic number 1
Hydrogen
what charge do Protons and Electrons have together in a nuetral atom
They balance to zero
Sound is this specific type of wave, which consists of compressions and rarefactions of matter.
What is a longitudinal (or compression) wave
This physicist proposed that light exists as discrete packets of energy, which helped explain how electromagnetic waves can behave like particles.
Who is Albert Einstein
If you double the mass while keeping force constant, acceleration does this.
Cuts in half
what element has the symbol W
Tungsten
This tiny region at the center of the atom contains most of the mass
The nucleus
When two waves meet and overlap, their crests and troughs align to create a wave with a much higher amplitude.
What is constructive interference?
In an electromagnetic wave, these two oscillating components are perpendicular to each other and to the direction the wave travels.
What are electric and magnetic fields
This is the acceleration of a 10 kg object experiencing a 50 N forward force and a 10 N friction force.
(4 m/s²)