Show:
Electromagnetic Waves
Mechanical Waves
Mechanical Energy
Electric Force
Electric Currents
100
This color has the shortest wavelength.
What is violet?
100
This is what happens when a crest and a trough occupy the same space.
What is a destructive interference?
100
Energy of position.
What is potential energy?
100
These have neutral charges.
What are neutrons?
100
Voltage is also called ____________.
What is potential difference?
200
EM waves can travel through a vacuum because they do not need this.
What is a medium?
200
The matter through which a wave travels.
What is medium?
200
Energy of motion.
What is kinetic energy?
200
These can move from atom to atom.
What are electrons?
200
A measure of how hard it is for charges to flow.
What is resistance?
300
This wave has the highest frequency.
What is a gamma ray?
300
How fast a crest moves through the medium.
What is speed?
300
When potential energy is high, kinetic energy is _________.
What is low?
300
This happens when two objects are negatively charged.
What is repel?
300
Doing this puts pollution in the air.
What is burning fossil fuels?
400
This type of wave is used in tanning beds.
What is ultraviolet?
400
When you increase the frequency of a wave, the wavelength ___________.
What is decreases?
400
Energy cannot be created or destroyed.
What is the Law of Conservation of Energy?
400
Causes your hair to stick out when you go down a slide.
What is friction?
400
A measure of how fast the charges are moving past a certain place.
What is a current?
500
When something looks black, it is because it _________ all the wavelengths of light.
What is absorbs?
500
A change in direction as waves pass through an opening or around a barrier in their path.
What is diffraction?
500
The kinetic energy of a 45 kg object moving at 13 m/s.
What is 3802.5 Joules?
500
An example would be iron, since it allows electrons to flow freely.
What is a conductor?
500
When a changing magnetic field causes a current to flow.
What is electromagnetic induction?