Light Waves
Is a light wave transverse or longitudinal?
It is transverse.
Is a sound wave transverse or longitudinal?
It is longitudinal.
True or false: energy cannot be created or destroyed.
True, it can only be transformed or transferred.
The name of the force exerted by magnets when they attract each other.
What is magnetism?
This type of energy comes from an object's movement.
Kinetic energy.
What does wavelength correlate to on the light spectrum?
Reds have longer wavelengths, and violets have shorter wavelengths.
This causes sound to amplify.
What is constructive interference?
When this type of wave is absorbed, it usually turns into thermal (heat) energy.
What happens when a light wave is absorbed?
True or false: when electrons spin in different directions, it creates a magnetic field.
False, a magnetic field is created when electrons spin in the same direction.
This type of energy comes from an object's position, shape, or chemistry.
Potential energy.
What does amplitude correlate to on the light spectrum?
Amplitude determines how bright something is. The brighter, the greater amplitude.
This causes sound to reduce.
What is destructive interference?
How does the Doppler Effect affect sound waves?
When soundwaves are closer, they appear to have a higher pitch and may sound louder.
What is electricity caused by?
The separation and movement of charged particles continues through a conductor and complete circuit.
This is the unit for energy.
What is a joule?
What is frequency and what is it measured in?
Frequency is the # of waves produced in a time period, measured in waves/sec (Hz).
This type of wavelength causes something to sound deeper/have a lower pitch.
How does a longer wavelength correlate to pitch?
How does the Doppler Effect affect light waves?
"Redshift" signals when objects are traveling further away, while "blueshift signals when objects are traveling closer. (all space related)
This type of field occurs when electric currents create a magnetic field. This also causes the aurora borealis.
What is an electromagnetic field?
Is mechanical energy potential or kinetic?
Neither, it is the sum of gravitational potential energy and kinetic energy.
This happens when light reflects, refracts, or transmits through a bubble.
When does constructive/destructive interference happen?
Does sound travel faster through denser materials?
Yes, it does.
This transformation happens when gas is put in a car.
Chemical -> electrical.
What's the difference between a direct current and an alternating current?
Direct currents always go in one direction, while alternating currents might sometimes switch direction.
What does each letter in MECHNLEGS stand for?
M-mechanical (gpe+k)
E-electrical (k)
C-chemical (p)
H-heat (thermal) (k)
N-nuclear (p)
L-light (radiant) (k)
E-elastic (p)
G-gravitational (p)
S-sound (k)