Motion- Physical Science

A change in position with respect to a reference point is

• acceleration

• velocity

• direction

• motion

Speed depends on how far something travels and

• how steep its route is.

• which direction it travels.

• how much time it takes to travel that far.

• none of the above

Which of the following measurements are velocities? Circle all that apply

• 88 km/h

• 9 m/s to the west

• 18 m/s down

• 10 m/s

The rate at which velocity changes is called

• motion

• speed

• acceleration

• vectors

You do not know an object’s velocity until you know its

• speed and distance

• reference point

• speed and direction

• acceleration

Direction is as important as distance in describing motion.

• True

• False

An object used as a reference point to determine motion should be

• accelerating

• decelerating

• stationary

• changing direction

Distance and direction of an object's change in position from a starting point

• displacement

• distance

• reference point

• motion

​The slope of a distance-time graph represents the ____ of a moving object. ​

• distance

• time

• speed

If the slope of a distance-time graph is steep, then the speed of the object must be

• slow

• rapid

• constant