Electricity
The rate of flow of electric charge.
What is current?
The state of matter with a fixed shape and volume.
What is a solid?
The distance between two consecutive crests.
What is wavelength?
The galaxy that contains our Solar System.
What is the Milky Way?
The most penetrating type of nuclear radiation.
What is gamma radiation?
The energy transferred per unit charge in a circuit.
What happens to gas pressure when volume decreases at constant temperature.
What is pressure increases?
Waves that require a medium to travel through.
What are mechanical waves?
The stage in a star's life where nuclear fusion of hydrogen occurs.
What is main sequence?
The change in atomic number during alpha decay.
What is a decrease of 2?
Components connected in a single loop form this type of circuit.
What is a series circuit?
The random motion of particles in a fluid, observed under a microscope.
What is Brownian motion?
A wave has frequency 50 Hz and wavelength 2 m. Calculate its speed.
What is 100m/s?
The observation that supports the expansion of the universe based on light wavelengths.
What is redshift of galaxies?
A sample has a half-life of 10 minutes. Time taken to decay to 25% of original.
What is 20 minutes?
The relationship between current and resistance for a fixed voltage.
What is current is inversely proportional to resistance?
The force per unit area acting on a surface.
What is pressure?
The electromagnetic wave with the highest frequency.
What are gamma rays?
The stage a massive star enters after a supernova if it does not become a black hole.
What is a neutron star?
The safety principle of reducing exposure by maximizing distance, minimizing time, and using this.
What is shielding?
The equation used to calculate electrical power using current and resistance.
What is P=I2R?
The term describing how difficult it is to compress a substance due to particle spacing.
What is density (or closely paced particles)?
The property of waves that determines their energy.
What is amplitude?
These are used to identify elements present in the atmosphere of stars.
What are spectral lines?
The type of radiation that is deflected most strongly by an electric field.
What is beta radiation?