Motion v and a

How would you describe displacement?

• shortest path between us and the weekend

• total path covered

• shortest path between start and end point

• distance

Which equation would you use for displacement?

• $\Delta x=\ xf\ -\ xi$

• d= d

• $\Delta x\ =\ xi\ -\ xf$
  

• $\Delta x\ =\ xf\ +\ xi$

Choose the units for acceleration:

• m/s

• m

• s

• m/s²

Tags

NGSS.HS-PS2-1

What are the units for velocity and speed

• m/s²

• m/s

• m

• s

Tags

NGSS.MS-PS3-1

Choose all variables that are vectors

• time

• speed

• distance

• displacement

Tags

NGSS.HS-PS3-5

Choose all variables that are scalars

• speed

• velocity

• displacement

• distance

What does an odometer in your car measure?

• distance

• speed

• displacement

• velocity

What does a speedometer measure?

• constant velocity

• instantaneous speed

• acceleration

• average speed

Which equation would you use to answer a question with the following key word: velocity

• $a=\frac{\Delta v}{t}$

• $v=\frac{\Delta x}{t}$

• $v=\frac{\Delta s}{t}$

• v=xf-xi

Which equation would you use to find the final position of an object if you know where it started, how fast it's going and how long its been gone?

• x_f = x_i + vt