formulas
what is the wave length formula
v = λ f
Name 4 types of waves
Mechanical, Electromagnetic, transverse, Longitudinal
The period of the wave is 5s. Calculate its frequency
0.2Hz
Whats the law of reflection
when an object hits a surface, its angle of incidence will equal the angle of reflection.
Identify the difference between distance and displacement
Distance is how far you travel all together, displacement is how far you move from orginal place
what is the displacement formula
v = u + at
What is a mechanical wave
Travels energy through particle vibrations, e.g. sound, ocean, seismic waves. Medium: solid, liquid, gas.
which of these are opaque:
a textbook, frosted glass, a sheet of paper, air, apple juice, a wall
a textbook & a wall
name 2 on the eletromagentic spectrum
radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays
what is the 'distance speed time' equation?
distance
--------------
speed|time
What is the time formula
v2= u2 + 2as
what is a transverse wave
When a transverse wave travels from A to B, the actual particle in the wave merely vibrates up and down.
what colour are my toe nails
black like my soul
whats the difference between, transparent, translucent and opaque
transparent- see through
translucent- blurry but see through
opaque- a solid
If you are travelling at 19km/hr how many m/s is it?
5.28m/s
What is the Acceleration formula
s= u + v2t
how do u measure wave length
you measure from the bottom or top of one trough to the other
The pipe is 38.6 ft long and produces a sound with a wavelength of about 10.6 m. If the speed of sound in air is 346 m/s, what is the frequency of this sound?
32.6 Hz
Where does the normal line start
The normal line starts where the incident ray strikes the mirror
How do you find the average speed of a object?
distance travelled over time taken
what does each letter stand for
Displacement (s)
Final Velocity (v)
Time (t)
Acceleration (a)
What does is mean if a wave has a big ampiltude
its wave length has a greater height or intensity from its resting position
A ray of lightrs strikes a mirror. The angle formed by the incident ray and the reflected ray measures 90 degrees. what are the measurements of the angle of incidence and the angle of reflection?
The angle of incidence and the angle of reflection are both 45 degrees.
what happens when the objects are larger and not smooth?
the angle of incidence and reflection are nearly but not always the exact same
What is speed?
a measure of how fast an object moves