Calculating Velocity

What is velocity?

• the quickness of an object

• the location of an object

• acceleration

• speed in a specific direction

The correct equation to calculate speed is

• distance/time

• time/distance

• distance x time

• distance/time²

Tags

NGSS.MS-PS3-1

Can be measured in meters per second (m/s)

• Distance

• Time

• Speed

• Acceleration

Tags

NGSS.MS-PS3-1

Which of the following statements about speed and velocity is correct?

• Velocity only describes an object’s rate of motion.

• Speed describes how an object is changing its velocity.

• Speed and velocity both describe how an object is speeding up.

• Only velocity includes the direction an object is traveling.

If a robot chases you down at a speed of 900 m/s for a distance of 200 m. How long has the robot been chasing you?

• 0.22 s

• 4.5 s

• 180000 s

It takes five hours to drive from Fort Worth to Midland, which is a distance of 300 miles. What would be the average speed for this trip?

• 60 mph

• 300 mph

• 5 mph

• 0.016 mph

Find the speed of the following objects.

Which object is the fastest?

• A

• B

• C

Answer explanation

Speed= distance/ time

An object is fastest if the objects numerical value for speed is the highest number. Object C speed is 3 m/s and is the highest number out of all the speed values given.

Also, Object C covers 3 meters every second, whereas Object B covers 2 meters every second and Object A covers 1 meter every second.

Tags

Speed

Motion

A ladybug moves from 2 cm to 7 cm in 25 seconds. What is the speed of the ladybug? (Hint: to find the total distance, you have to subtract)

• 5 cm/sec

• 0.2 cm/sec

• 12 cm/sec

• 3.57 cm/sec

Which of the following is a unit of speed ?

• sec

• mi

• m/s

• min

Tags

NGSS.MS-PS3-1

Find the average velocity of a bicycler that starts 150 meters north of town and is 1200 meters north of town after 30 minutes. Answer in units of m/min.

Mathematical Equivalence

ON

Tags

112.44.c.5.A