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Sound & Music
Quantum Physics
Circuits & Magnetism
Light Rays
Radioactivity
100

The speed of sound in dry air at 0 degrees C.

What is 330 m/s?

100
In this famous experiment, electrons travel to a detector screen in a wave-like manner, yet hit the screen in a particle-like way.
What is the double-slit experiment?
100
Two bulbs are connected to a circuit in series and one bulb is unscrewed. This is what happens to the other bulb.
What is goes out?
100

This is the smallest part of the electromagnetic spectrum.

What is the visible light spectrum?

100

This is also called a beta particle.

What is an electron?

200
The frequency of the same note, 320 Hz, but one octave higher in pitch.
What is 640 Hz?
200
According to the uncertainty principle, we can never precisely measure these two quantities at the same time.
What is position and velocity (momentum, kinetic energy)?
200
This is a semi-conductor device that allows the flow of current in one direction only.
What is a diode?
200
A property of light waves, but not of sound waves.
What is polarization?
200

This involves changes in the atomic nucleus.

What is radioactivity?

300
These are the two possible frequencies of vibration of the piano wire when a piano tuner hears 3 beats per second while using a 260 Hz tuning fork.
What are 257 Hz and 263 Hz?
300
The wavelengths of matter waves are this, when compared to visible light.
What is small?
300
A battery uses this up before dying.
What is chemical potential energy?
300
Glass windows in our houses absorb this frequency of light.
What is infrared or most frequencies of ultraviolet?
300

They are emitted by de-excitation of the atomic nucleus.

What are gamma rays (particles)?

400
Is 1,000 times more intense than a 40 decibel sound.
What is 70 decibels?
400
In Rutherford's famous gold foil experiment, he found that most of the alpha particles traveled through the foil undeflected, some were more widely deflected, and a few did this.
What is were deflected backward?
400
Two charged particles held near each other are released. As they move, the acceleration of each increases. A physicist observing the experiments concludes this about their charges.
What is they are oppositely charged?
400
Total internal reflection occurs when light is incident upon a transparent material at this angle.
What is the critical angle?
400

This is emitted when an isotope decays and forms a new isotope with an atomic number minus two and an atomic number minus four.

What is an alpha particle (or helium nucleus)?

500
Fourier discovered that these can be summed to represent more complex periodic waves found in music and earthquakes.
What is simple sine waves?
500
In the photoelectric effect, this would increase the number of electrons ejected from the photosensitive material.
What is a higher intensity (brightness or quantity) of light?
500
This pole of the compass needle points to the south pole of a magnet.
What is north?
500
A hypothetical atom has three distinct energy levels. This many spectral lines can be produced by the atom, assuming all transitions are possible.
What is three?
500

A sample of a particular radioisotope is placed near a Geiger counter, which registers 100 counts per minute.  Two hours later, the detector counts at a rate of 25 counts per minute.  The physicist determines that the half-life of the material is…

What is one hour?