Zap This
Ride the Wave
Heat Wave
See This
Mixed Bag
100
A 5 microcoulomb positive charge and 7 microcoulomb negative charge are 7 cm apart. What is the magnetiude of the electrostatic force between them? Is it attractive or repulsive?
What is 64.3 N and attractive?
100
A wave is really just the transfer of ___________.
What is energy?
100
Describe the difference between temperature, internal energy and heat.
What is the average kinetic energy of translational molecular motion (how hot or cold something is compared to a standard) vs the total of all energy associated with the particles that make up a material (translational motion, rotational motion, bonds....), and the process where thermal energy is transferred from one object to another (sometimes connected to the thermal energy of an object).
100
This law will help calculate the angle at which light will bend when it transfers from one medium to another.
What is Snell's Law?
100
This word describes the tendency of a system towards chaos or increased disorder.
What is entropy?
200
The direction of the electric field around a point charge is determined by
What is the direction that a positive test charge will accelerate when placed at that position in the field?
200
For this type of wave the particle vibration is parallel to the direction of energy transfer?
What is longitudinal wave?
200
When no additional thermal energy can be transferred between objects the objects are said to be in thermal ____________________ and their ________________ are the same.
What is equilibrium and temperatures?
200
Describe the sign conventions for convex and concave lenses - don't forget to include which ones are diverging and which ones are converging.
What is: converging: concave mirrors do is + as long as the object is real, di is + if the image is real (image is in front of the mirror surface), f is + convex lenses do is + if object is real, di is + if the image is real (image is where the light passed through), f is + Diverging: convex mirrors f is -, do is + if the object is real, di is always - (the image will be inside the mirror's surface) Concave lenses f is -, do is + if real, di is - if the image is on the same side as the object (the light bounced back instead of passing through to form the image)
200
Engines which are designed to function off of a difference in temperature between reservoirs are called a __________ ____________ and are not 100% __________.
What is a Carnot Engine or heat engine, efficient?
300
The electric field is a _____________ quantity which can be represented by ____________. As these are clustered closer together they indicate that the electric field is ___________________.
What is vector (quantity), (represented by) arrows, (closer together means) stronger field?
300
This type of wave does not always require a medium.
What is a transverse wave? (specifically electromagnetic waves)
300
A sound wave moves at 343 m/s through air. This is the wavelength of the sound when the frequency is 120 Hz.
What is 2.86 m?
300
A light ray hits the boundary between air and optical fiber at an angle of 22 degrees with the boundary surface. If the optical fiber has an index of refraction of 1.44 and air has an index of refraction of 1, what is the angle of refraction for the light as it transfers through the boundary?
What is 40 degrees?
300
An solenoid with ferromagnetic core is called an ___________.
What is electromagnet?
400
A 3 microcoulomb negative charge is situated 5 mm to the left of a 5 microcoulomb negative charge. What is the strength of the electric field at a position half way in between the two charges?
What is 2.88 x 10^9 N/C?
400
A wave crest passes a given position every 5 seconds. This value represents the frequency of the wave.
What is 0.2 Hz?
400
An electric burner glows red when it is turned on high. Thermal energy transferred to other objects from the glowing red element is transmitted by this process.
What is radiation?
400
This theory states that light behaves like a wave and a particle depending on how you observe it.
What is wave-particle duality?
400
As the number of coils an electromagnet is made with increases the magnetic field ____________?
What is increases?
500
A charge of 7 microcoulombs is moved a distance of 6 cm within an electric field. This requires 9 J of work. What potential difference has the charged been moved through?
What is 1.29 x 10^6 V?
500
A train blows its whistle as it is nearing the station. The frequency of the whistle from the stationary observer on the platform is _____________ than the actual frequency emitted.
What is higher?
500
The terms red shift and blue shift are related to this phenomenon.
What is the Doppler shift in light?
500
In sound and mechanical waves what how does the wave change when constructive interference occurs? destructive interference?
What is the amplitude will increase - the amplitude will decrease?
500
This is constant in a series circuit. This is constant in a parallel circuit.
What is current and voltage respectively?
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