Physics 1 Review Formulae

Newton’s Laws §

Newton’s First Law §

Linear Momentum §

• $p$, momentum in $kg\times m/s$
• $m$, mass in kilograms
• $v$, velocity in $m/s$

$$p=mv$$

Momentum in a Closed System (Conservation) §

• $p_{initial}$, initial total momentum of the system in $kg\times m/s$
• $p_{final}$, final total momentum of the system in $kg\times m/s$

$$p_{initial}=p_{final}$$

Newton’s Second Law §

• $F$, force in Newtons
• $m$, mass in kilograms
• $a$, acceleration in $m/s^2$

$$F=ma$$

Energy §

Kinetic Energy §

• $KE$, kinetic energy in Joules
• $m$, mass in kilograms
• $v$, velocity in $m/s$

$$KE=\frac{m{v}^2}{2}$$

Potential Energy §

• $PE$, potential energy in Joules
• $m$, mass in kilograms
• $g$, gravitational constant
• $h$, height in meters

$$PE=mgh$$

Work §

• $W$, work in Joules
• $F$, force in Newtons
• $d$, distance in meters
• $\theta$, angle in degrees

$$W=Fd\cos (\theta )$$