Acceleration Calculations

What is the initial velocity?

• 20 m/s

• 6 m/s

• 5 m/s

• 4 m/s

What is the final velocity?

• 20 m/s

• 6 m/s

• 5 m/s

• 4 m/s

What is the time?

• 20 s

• 6 s

• 5 s

• 4 s

Which correctly shows the work for how to calculate the acceleration?

• $\frac{5-6}{20}$
  

• $\frac{6-5}{20}$
  

• $\frac{20-5}{6}$

• $\frac{5-20}{6}$
  

Tags

NGSS.HS-PS2-1

What is the equation to calculate the acceleration?

• $a\ =\frac{vf\ -vi}{g}$

• $a\ =\frac{vi\ -vi}{g}$
  

• $a\ =\frac{vf\ -vi}{t}$
  

• $v\ =\frac{d}{t}$
  

Tags

NGSS.HS-PS2-1

Calculate the acceleration

• 2.5

• 3.3

• -2.5

• -3.3

Tags

NGSS.HS-PS2-1

If the question asks you to calculate the acceleration, what is the unknown?

• u

• a

• v

• g

Tags

NGSS.HS-PS2-1

An object accelerates at -3 m/s^2 and comes to a stop after 4 s. Identify ALL the givens.

• Vi= 0 m/s

• Vf = 0 m/s

• a = -3 m/s

• Vi = -3 m/s

• t = 4s

Tags

NGSS.HS-PS2-1

An object accelerates at -3 m/s^2 and comes to a stop after 4 s. How fast was the object moving before it accelerated? The unknown is

• Vi

• Vf

• a

• t

Tags

NGSS.HS-PS2-1

An object accelerates at -3 m/s^2 and comes to a stop after 4 s. How fast was the object moving before it accelerated? Substitute the givens into the equation.

•  $-3\ =\frac{0\ -vf}{4}$  
  

•  $-3\ =\frac{0\ -vi}{4}$ 

•  $-3\ =\frac{vf\ -0}{4}$  
  

•  $a\ =\frac{0\ --3}{4}$  
  

Tags

NGSS.HS-PS2-1