Speed, Acceleration, Momentum Equations, Units, and Problems

What do you calculate with this equation?

 $d=s\cdot t$  

• Distance

• Speed

• Momentum

• Acceleration

What form of the speed equation should you use to solve for time?

• $t\ =\ \frac{d}{s}$

• $t\ =\ \frac{s}{d}$

• $t\ =\ d\cdot s$

• $t\ =\ s\cdot d$

Which of the following units should you use for speed?

• 
  

  $\frac{m}{s}$
  

• m

• s

• $\frac{kg\cdot m}{s}$

Which of the following equations can be used to find momentum?

• 
  

  $s\ =\ \frac{d}{t}$
  

• $a\ =\ \frac{v_f-v_i}{t}$

• $p\ =\ m\cdot v$

Tags

NGSS.HS-PS2-2

What units do you use for momentum?

• 
  

  $\frac{m}{s}$
  

• $m$

• $\frac{kg\cdot m}{s}$

Tags

NGSS.HS-PS2-2

What form of the momentum equation should you use to solve for mass?

• 
  

  $p\ =\ m\cdot v$
  

• $m\ =\ \frac{p}{v}$

• $v\ =\ \frac{p}{m}$

Tags

NGSS.HS-PS2-2

What units should you use for acceleration?

• 
  

  $\frac{m}{s^2}$
  

• $\frac{m}{s}$

• $\frac{kg\cdot m}{s}$

Tags

NGSS.HS-PS2-1

What is the equation to solve for acceleration?

• 
  

  $a\ =\ \frac{v_f+v_i}{t}$
  

• $a\ =\ \left(v_i-v_f\right)\cdot t$

• $a\ =\ \frac{v_f-v_i}{t}$

What is the SI unit for time?

• seconds (s)

• meters (m)

• kilograms (kg)

"An ant takes 10 seconds to crawl a distance of 65 cm. What is its speed?"

What is the time in this problem?

• 10 seconds

• 65 cm

• speed