Show:
Light
Color
Reflection & Refraction
Electricity
Magnetism
100
Scientists now agree that light has a dual nature, part ___________ and part _____________.
What is particle and wave?
100
______________ light is not a color, but a combination of all the colors.
What is white light?
100
The law of reflection states that the angle of ____________ and the angle of _____________ are equal to each other.
What are incidence and reflection?
100
Like charges ________________, and opposite charges _______________.
What is repel and attract?
100
The direction of the magnetic field outside a magnet is from the ___________ to the _____________ pole.
What is north to the south?
200
The speed of light is ________________________ (remember units!).
What is 300,000 km/s?
200
The color of a(n) ______________ object is the color of the light it reflects.
What is opaque?
200
The reflection of light from a rough surface is called __________________.
What is diffuse reflection?
200
The SI unit of charge is ________________.
What is Coulomb?
200
A magnetic field is produced by the __________________________________?
What is motion of electric charge?
300
Name two kinds of waves in the electromagnetic spectrum.
What are radio waves, microwaves, infrared waves, light waves, ultraviolet rays, X-rays, or gamma rays?
300
The color of a(n) transparent object is the color of light it _______________.
What is transmits?
300
____________________ is the bending of a wave as it crosses the boundary between two media at an angle.
What is refraction?
300
What is the formula for electric field strength, E?
What is E=F/q?
300
The force on a current-carrying wire in a magnetic field is maximum when the current is __________________ to the magnetic field lines.
What is perpendicular?
400
______________ is the aligning of vibrations in a transverse wave, usually by filtering out waves of other directions.
What is polarization?
400
Two colors of light that when added together produce white are known as _____________________.
What are complementary colors?
400
A diverging lens is also known as a(n) ______________ lens.
What is concave?
400
A .001 Coulomb charge is located in 400 N/C electric field. What is the force experienced by the charge?
What is F=Eq = (400 N/C)(.001 C) = .4 N?
400
What will happen if you place a magnetic compass near a bar magnet?
What is "the needle of the compass will line up with the magnetic field around the bar magnet?"
500
Materials that absorb light without reemision, allowing no light through them, are ______________ materials.
What is opaque?
500
After reaching an excited state, an atom emits a(n) ____________ and then returns to its normal state.
What is a photon?
500
If you shout across a canyon, and you hear the echo 2 seconds later, how wide is the canyon? The speed of sound in the air is 340 m/s.
What is (340 m/s)(2s/2) = 340m?
500
What is equivalent to 1 Coulomb of charge per second?
What is ampere?
500
Two ways that magnets are like electric charges are:
What is 1) the both attract and repel, and 2) the strength of interaction depends on the distance of separation?