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All Subject Study Guide for 7th Grade Comprehinsive (Physics, biology, chemistry, math, english, and spanish) Exam| Actual Questions and Answers 100% Correct| Latest Update 202$13.49
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All Subject Study Guide for 7th Grade Comprehinsive (Physics, biology, chemistry, math, english, and spanish) Exam| Actual Questions and Answers 100% Correct| Latest Update 202
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All Subject Study Guide for 7th Grade Comprehinsive
(Physics, biology, chemistry, math, english, and
spanish) Exam| Actual Questions and Answers 100%
Correct| Latest Update 202
All Subject Study Guide for 7th Grade Comprehinsive
(Physics, biology, chemistry, math, english, and
spanish) Exam| Actual Questions and Answers 100%
Correct| Latest Update 2024
hooke's law ✔✔the force necesary to extend or compress a spring is
directly proportional to the distance (N)
mechanical energy ✔✔the sum of all energys (j)
potenial energy ✔✔energy due to location (j)
kinetic energy ✔✔energy due to motion (j)
elastic energy ✔✔energy stored in pulled/compressed spring, rubber band
or bungee cord (j)
law of conservation of energy ✔✔energy cannot be created nor destroyed
only transformed
net force ✔✔sum of all forces (N)
speed formula ✔✔S=d/t
,velocity formula ✔✔V=Xf-Xi/t
acceleration formula ✔✔a=Vf-Vi/t a=F/m
force formula ✔✔f=m*a
work formula ✔✔w=F*d
power formula ✔✔P=w/t
mass formula ✔✔m=F/a
law of universal gravitation ✔✔the further two objects are from each other
the less gravity there is
newtons first law of motion ✔✔an object in motion remains in motion and
an object at rest remians at rest unless acted upon by an unbalanced force
newtons second law of motion ✔✔an objects acceleration is directly
propotional to the force aplied and inversly to the objects mass
newtons third law of motion ✔✔for every action there is an equal and
opposite reaction force
final velocity formula ✔✔Vf=Vi+(a*t)
,light ✔✔candela
electricity ✔✔amperes
light speed ✔✔3*10^8
longitudal waves ✔✔the particles of a wave vibrate PARALLEL to the direction of
a wave
transverse waves ✔✔a wave in wich particles move PERPENDICULAR to
the direction of the wave
surface wave ✔✔the combination of transverse and longitudinal at the
boundry of a ifferent media. particles mov in circular motion.
frequency ✔✔the number of waves pasing a location every second (Hz)
frequency formula ✔✔f=(landa)/v
period ✔✔the time wich it takes one wave to pass (sec)
period formula ✔✔T=1/f
, wavespeed ✔✔the rate at wich a wave moves (m/s)
wave speed formula ✔✔V=(landa)*f
wave interference ✔✔2 waves (unlike objects) can occupy the same place at
the same time
constructive interference ✔✔displacments are in same direction
destructive ✔✔displacements are in opposite directions
standing wave ✔✔appers to not be moving
electromagnetic wave ✔✔can travel the vacum of outer space. doesnt need
a medium
Meter ✔✔SI unit for length
Kilogram ✔✔SI unit for mass
Second ✔✔SI unit for time
Kelvin ✔✔SI unit for temperature
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