Calculating Speed Distance Acceleration and Velocity

speed of an object in a particular direction

• motion

• velocity

• speed

• acceleration

when an object changes its position compared to a reference point.

• acceleration

• speed

• motion

• reference point

the rate at which speed or velocity changes

• acceleration

• average speed

• motion

• reference point

A snake slithered across the sidewalk in between two sign posts. At the first sign post his speed was 1.2 m/s. At the second sign post his speed was 1.2 m/s. Did the snake change velocity?

• Yes

• No

The formula for calculating speed is...(x means multiply; / means divide)

• time x distance

• distance x speed

• distance / time

• time / distance

Acceleration of an object happens when things ________

• slow down
• go faster
• change direction (turn)
• All of the above

Km (kilometers) is a unit for ___. 

• Speed
• Distance
• Time
• Direction

If you have a speed in m/s. What unit would your time be measured in?

• minute

• hour

• seconds

• milliseconds

If you have a time in hours and a distance in kilometers, what would your unit of speed be?

• m/s

• km/hr

• km/s

• m/km

The formula for acceleration is?

• a=V_f-V_i/t

• a= v/t

• a=t/v-v

• a=v-t/v

Tags

NGSS.HS-PS2-1