Units
m is the unit for
distance (or displacement, or wavelength)
The equation for acceleration
a=v/t
What does the variable a stand for
acceleration
You are asked to calculate the distance traveled by an object when given the speed and the time. What equation should you use?
s=d/t or d=st
The equation for momentum
p=mv
s is the unit for
time
The equation for voltage
V=IR
What does the variable F stand for
Force
You are asked to calculate the final velocity of an object and you are told it starts from rest and accelerates for a certain amount of time. Which formula should you use?
vf=vi+at
What quantity is measured in Amperes (A)?
Current
m/s is the unit for
velocity
The equation for kinetic energy
What does the variable KE stand for
Kinetic energy
You are asked to calculate the weight of an object. What equation should you use?
Fg=mg
What is the unit of mass?
m/s/s or m/s^2 is the unit for
acceleration
The equation for the speed of a wave
v=lambdaf
What does the variable g stand for
acceleration due to gravity
You are asked to calculate the current through a circuit. Which equation should you use?
V=IR or I=V/R
You are asked to calculate the acceleration of an object when given the force applied and its mass. Which equation would you use?
F=ma or a=F/m
energy
The equation for displacement
x=vit+1/2at^2 or xf-xi
What does the variable V stand for
voltage
You are asked to calculate the heat added to a liquid. Which equation should you use?
Q=mcT
Degree Celsius is the unit for what quantity?
Temperature