As the period of a standing wave increases, the frequency does this.
What is decreases?
100
This is always connected to a circuit in series.
What is a safety fuse?
100
On a television screen, these are the two colors that are mixed together to produce yellow on the screen.
What is red and green?
100
This is also called a beta particle.
What is an electron?
100
This force governs the movement of planets and stars in space.
What is gravity?
200
The period of a pendulum depends on this.
What is length?
200
Outside a magnet, magnetic field lines are drawn in this direction.
What is north to south?
200
Betelgeuse is 640 light-years from Earth. When light from Betelgeuse reaches us, it is this old.
What is 640 years?
200
This involves changes in the atomic nucleus.
What is radioactivity?
200
This force is mostly responsible for chemical reactions.
What is the electromagnetic force?
300
When astronomers look at light from distant galaxies, they observe a red shifting of the light. They conclude that the galaxies are moving in this direction.
What is away from us?
300
Below a certain temperature, I exhibit zero electrical resistance.
What is a superconductor?
300
This is the minimum length of a plane mirror in order for you to see a full image of yourself.
What is half your height?
300
They are emitted by de-excitation of the atomic nucleus.
What are gamma rays (particles)?
300
Name the four fundamental forces.
What is gravity, electromagnetic, strong (nuclear), and weak?
400
These are the three variables that natural frequency depends on.
What are size, shape, and elasticity?
400
Two identical lamps are connected in series to the same battery. Now connect them in parallel. This is the circuit that has more current flowing through it.
What is parallel?
400
This color of visible light diffracts the most when passing through a narrow opening.
What is red?
400
This is emitted when an isotope decays and forms a new isotope with an atomic number minus two and an atomic mass number minus four.
What is an alpha particle (or helium nucleus)?
400
This force is responsible for protons attracting each other when close together in the nucleus.
What is the strong (nuclear) force?
500
This is a position of maximum amplitude in a standing wave.
What is an anti-node?
500
I am constant in a step-up or step-down transformer.
What is power?
500
In a thin film, this wavelength condition results in destructive interference.
What is half a wavelength out-of-phase?
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 a rate of 25 counts per minute. This is what the physicist determines that the half-life of the material to be.
What is one hour?
500
I am capable of changing a neutron into a proton, causing nuclear decay.