Units Of Mesurement Flashcards
What unit is energy measured in?
Joules
J
How do you convert joules to kilojoules?
Divide by 1000
How do you convert joules to megajoules?
Divide by 1000000
How do you convert kilojoules to megajoules?
Divide by 1000
How do you convert kilojoules to joules?
Multiply by 1000
How do you convert megajoules to joules?
Multiply by 1000000
What unit is force measured in?
Newtons
N
What unit is distance measured in?
Meters
m
What is the equation to find the work that has been done?
Work done = force x distance
W = f x d
What unit is mass measured in?
Kilograms
kg
What unit is velocity measured in?
Meters per second
m/s
How do you convert megajoules to kilojoules?
Multiply by 1000
What unit is gravity measured in?
Meters per second squared
m/s²
What unit is hight measured in?
Metres
m
What equation can be used to find the potential energy of an object?
Potential energy = mass x gravity x hight
PE = mgh
What is the unit that frequency is measured in?
Hertz
What unit is the wavelength of light measured in?
Metres
Which unit is work measured in?
Joules J
How do you find frequency?
Frequency =
How many waves in the line x how many places to move decimal to a whole (tens hundreds thousands). Change it to one second.
What equation can be used to find the kinetic energy of an object?
Kinetic energy = one half mass x velocity (speed) squared
KE = ½mv²
