Nuclear
The number of protons in the nucleus of the atom.
What is the Atomic Number
Materials that DO NOT allow the flow of electricity.
What is an insulator?
These tend to move from North to South.
Which way do magnetic fields move?
The time it takes for a wave to complete one wave cycle is the wave’s ____
What is a wave's period?
The frequency of a wave is 600Hz and the wavelength is 0.012m. What is the wave speed?
7.2 m/s
The number of protons and neutrons in the nucleus.
What is atomic mass?
A calculator uses a 9V battery and draws 0.1A of current. How much power does it use?
What is 0.9 Watts
One uses charges and the other uses magnetic poles. Charges can be separated while poles cannot.
What are some differences between electricity and magnetism?
When you increase this part of the sound wave it changes the volume?
Amplitude
The index of refraction of a diamond is 2.4. What is the speed of light as it moves through the diamond?
What is 1.3 *108 m/s?
Double Points! Answer both to get 600 points! Get one wrong and you don't get any.
1) The combining of 2 atoms to make a bigger one.
2) The splitting of 1 atom to make 2 smaller ones.
1) What is Fusion?
2) What is Fission?
Atoms that have more electrons than protons. For example, Oxygen (atomic number 8) has 9 electrons.
An Anion
Unified Kingdoms of magnetic domains
Magnetic atoms that are aligned with each other.
Half Shells
What are the 3 main properties of magnets?
The fastest moving electromagnetic wave.
A light ray is passing through water (n=1.33) towards the boundary with a transparent solid at an angle of 56.4°. The light refracts into the solid at an angle of refraction of 42.1°. Determine the index of refraction of the unknown solid
What is 1.65?
The phases of matter from most energy to least energy.
What is Plasma, Gas, Liquid, and Solid?
The half-life of a certain isotope is 30 seconds. At the end of 1 minute, how much of the isotope remains?
What is 1/4 of the isotope left?
A wire with a length of 30 cm experiences a current of 5 A and generates a magnetic field of 20T. What is the force this wire is generating?
What is 30 N of force?
Red + Green
Blue + Green
Red+ Blue
Red + Blue + Green
Yellow
Cyan
Magenta
White
Double points if both are answered correctly.
A ukelele string is about 40 cm in length and vibrates in the 3rd harmonic.
What is its wavelength?
What is its velocity if the frequency is 300 Hz?
26.7m
8010 m/s
400g of a substance has a half-life of 100 years. How much is left after 35 years?
What is 35.355 g?
2 charges are 2.5*10-3m apart. the first charge is 4*10-6C and the other is -2*10-6C. What is the electro static force?
Double points, is it attractive or repulsive?
-11,520 N
Attractive
For these points, you need the magnitude and direction.
The charge of a wire has the electricity moving to the right with 36A while the force seems to be moving upwards at a magnitude of 72N. What is the direction and magnitude of the magnetic field?
What is 2 T moving out of the page?
The electromagnetic spectrum in order from highest frequency to lowest.
Gamma
xrays
UV
Visible
Infrared
Microwave
Radio
A police car drives towards a jogger at 30 m/s as she runs in the direction of the police car at 2 m/s. What would the 700 Hz siren sound like to the jogger? (The speed of sound today is 343 m/s)
771.56 Hz