For a regular magnet, the North end of the magnet is attracted to the _______ end of another magnet.
What is South.
100
A circuit that has only one pathway for current to flow.
What is a series circuit.
100
The material (not too big, and not too small) through which a wave travels.
What is a medium
100
When photons of light hit the surface of a metal and eject electrons.
What is the photoelectric effect.
100
Total energy of an isolated system is conserved. Energy cannot be created or destroyed.
What is The First Law of Thermodynamics
200
The process of generating a current by a changing magnetic field.
What is electromagnetic induction
200
A complete, unbroken path through which current can flow is called --
What is a circuit.
200
A wave that moves the medium in a direction perpendicular to the direction in which the wave travels.
What is a transverse wave
200
The "missing mass" in a nuclear reaction is called this. (This is the mass that's converted into energy!)
What is mass defect.
200
I touch my hand to a hot plate and immediately pull it away due to a burning sensation. The method of heat transfer displayed in this example is...
What is conduction.
300
We created a device in class that converts electrical energy into mechanical energy. What is the name of that device?
What is a motor.
300
I have a circuit with a 9 volt battery and a total resistance of 3 ohms. What is the current in that circuit? (INCLUDE UNITS FOR POINTS --- NO UNITS = NO POINTS!!)
What is 3 Amps.
300
The frequency of a wave is 10 Hz and its wavelength is 2 m. This is the velocity of the wave. (INCLUDE correct units)
What is a 20 m/s
300
When Young did his double slit experiment, he saw that when light passes through TWO slits, it behaves as a ______.
What is a wave.
300
Two objects of different temperatures are moved so that they are touching each other. Eventually, these objects will both reach the same temperature. What is this called?
What is thermal equilibrium.
400
List three things you can do to strengthen an electromagnet.
What is increase number of coils, add an iron core, increase voltage.
400
How do you know the voltage that each branch gets in a parallel circuit?
What is it's the same as the battery's voltage.
400
In a longitudinal wave, the distance from one compression to the next compression is called this.
What is the wavelength
400
The shorter the wavelength, the _______ the frequency and the ________ the energy.
What is higher, higher.
400
When you have hot gas or liquid rising and cool gas or liquid sinking, ________ is happening.
What is convection.
500
What is Faraday's Law of Electromagnetic Induction?
What is a process where a conductor placed in a changing magnetic field (or a conductor moving through a stationary magnetic field) causes the production of a voltage across the conductor.
500
Materials that allow the charges of an electric current to move freely through them are called --
What is a conductor.
500
The speed of sound in air is about 340 m/s. What is the wavelength of sound waves produced by a guitar string vibrating at 490 Hz?
What is 0.69 m
500
How does increasing the brightness of light in the photoelectric effect impact the number of electrons being emitted?
What is it increases them.
500
A device that converts heat/thermal energy into mechanical energy.