Speed and Motion

When an object's distance from another object is changing,

• it is in motion

• it is speeding

• it has a high velocity

• it is accelerating

Speed equals distance divided by

• time

• velocity

• size

• motion

You can show the motion of an object on a line graph in which you plot distance against

• velocity

• time

• speed

• direction

It is rare for any motion to

• stay the same for very long

• change quickly

• increase in velocity

• decrease in speed

Tags

NGSS.MS-PS3-1

If you know a car traveled 300 kilometers in 3 hours eastward, you can find its

• acceleration

• direction

• average speed

• velocity

If a bicyclist travels 30 kilometers in two hours, her average speed is

• 30 km/hr

• 60 km/hr

• 15 km/hr

• 2 km/hr

An object changes position relative to another object

• average speed

• constant speed

• displacement

• motion

The speed at a certain point in time

• constant speed

• average speed

• instantaneous speed

• motion

An object's distance and direction from a reference point

• velocity

• position

• reference point

• slope

A place or object used for comparison to determine if something is in motion

• speed

• displacement

• reference point

• position