Units and Symbols
What is the symbol and unit for speed?
S
m/s (meters per second)
What is the equation for work?
W = FD
What is being bonded in an ionic bond?
Metal + nonmetal
What is the highest point of the wave known as?
A person pushes a box with a force of 60 N across a floor for 5 meters. How much work is done?
W = Fd
W = 60N * 5m
W = 300J
What is the symbol and unit for force?
F
N (Newtons)
What is the formula for potential energy?
PE = mgh
What is being bonded in a covalent bond?
Nonmetal + nonmetal
The distance from one crest to the next is known as what?
Wavelength
A wave travels at 300 m/s and has a wavelength of 3 m. What is the frequency?
f= v/(upside down y)
f = (300m/s)/3m
f = 100Hz
What is the symbol and unit for Kinetic energy?
KE
J (Joules)
What is the equation for wave frequency?
Frequency = Velocity/Wavelength
What is being bonded in a metallic bond?
metal + metal
The height of the wave from the middle to the crest is known as what?
Amplitude
A car speeds up from 5 m/s to 25 m/s in 10 seconds. What is the acceleration?
a = (Vf - Vi)/t
a = (25m/s - 5m/s)/10s
a = (20m/s)/10s
a = 2m/s2
What is the symbol and unit for power?
P
W (Watts)
What is the formula for acceleration?
a = (Vf - Vi)/t
What is the max amount of electrons found in the outer shell of an element in group 17?
7
Trough
A 2 kg rock is rolling at 3 m/s. What is its kinetic energy?
KE = 1/2 mv2
KE = 1/2 (2kg)(3m/s)2
KE = 1/2 (2kg * 9m/s2)
KE = 9J
What is the symbol and units for momentum?
p
kg*m/s (kilograms x meters per second)
What is the formula for mass?
m = F/a
or
m = P/v
Which bond shares electrons between elements?
Covalent bond
Draw the symbol for wavelength
(upside down y)
A machine does 1200 J of work in 4 seconds. What is the power output?
P = W/t
P = 1200J/4s
P = 300 W