Speed, Acceleration and Velocity

A stopped car begins moving and reaches a speed of 25m/s in 5 seconds. What is its acceleration?

• +25m/s²

• -0m/s²

• +5m/s²

• 5m/s

Tags

NGSS.MS-PS2-2

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.

Avery likes to walk 30 feet in 10 seconds. What is her speed?

• 3 feet/sec

• 6 feet/sec

• 10 feet/sec

• 2 feet/sec

65mi/hr South is an example of...

• Speed

• Velocity

• Acceleration

• Direction

Here is a graph of speed vs time. If the object is moving to the east, which BEST describes the speed and velocity of the graph?

• Both speed and velocity are changing.

• The speed and velocity remain constant.

• The speed is constant and velocity is changing.

• The velocity cannot be determined from the graph.

Tags

NGSS.MS-PS3-1

M/s east

• Speed

• Velocity

• Acceleration

Tags

NGSS.MS-PS3-1

Speed/Velocity/Distance/Acceleration

• Velocity

• the distance covered by an object in unit time

• Speed

• D/T

• Speed

• The distance an object travels per unit of time

• Distance

• How far an object travels

• Acceleration

• The rate of change of velocity

Tags

NGSS.MS-PS3-1

Speed with direction.

• Speed

• Velocity

• Acceleration

The following is an example of:

8 m/s

• speed

• velocity

• acceleration

Tags

NGSS.MS-PS3-1

Quicksilver just saw a blur go past him (that doesn't happen often). From what he saw, the being went 9, 000, 000 meters in 3 seconds. Then he started the chase. Who else is possibly this fast?

• 9,000,000 meters divided by 3 seconds

• Velocity

• 3, 000, 000 m/s away from Quicksliver

• Speed

• 3, 000, 000 m/s²

• Where are these numbers coming from?

• 3, 000, 000 m/s

• Acceleration

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5