Speed/Velocity/Acceleration

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

• A position

• A reference point

• a constant

• a velocity

Time equals distance divided by ________

• time

• speed

• size

• motion

If you know the distance an object has traveled in a certain amount of time, you can determine ________.

• the size of the object

• the speed of the object

• the location of the object

• the acceleration of the object

When you know both the speed and direction of an object's motion, you know the __________.

• average speed of the object

• acceleration of the object

• distance the object has traveled

• velocity of the object.

If the speed of an object does NOT change, the object is traveling at a __________.

• constant speed

• average speed

• increasing speed

• decreasing speed

If a bicyclist travels at 15km/hr, how long will it take her to travel 30km?

• 450h

• 6h

• .5h

• 2h

If the spirit of Australia, a boat, reaches speeds of 318.67 mph for .75 hours (45 minutes), what is the distance traveled?

• 14340.2 miles

• 424.9 miles

• 239 miles

• none

To determine the acceleration rate of an object, you must calculate the change in speed during each unit of ______.

• Velocity

• time

• motion

• deceleration

If speed is measured in meters per second and time is measured in seconds, the unit for acceleration is _________.

• seconds

• meters

• meter per second

• meters per second per second

T/F: Motion is measured relative to a reference point?

• True

• False