Speed, Velocity, and Acceleration

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.

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

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

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

• Speed
• Velocity
• Acceleration
• Direction

Find the velocity of a plane that traveled 3000 miles west in 5 hours.

• 65 mph

• 600 mph

• 600 mph west

• 600 mph

Describe the speed of the object from 4-6 seconds using the distance vs. time graph.

• Increasing speed
• Decreasing speed
• Not moving
• Constant speed

Tags

CCSS.HSF.IF.B.4

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

CCSS.8.EE.C.7B

A helicopter flies west 200 miles in 2 hours. What is its velocity?

• 99 mph

• 100 mph south

• 400 mph south

• 297 mph south

If you travel 7.5 km and walk for 1.5 h, what is your average speed?

• 5 km/h
• 11.25 km/h
• 0.2 km/h

You are riding your bike at 9 km/h. Ten minutes later, your speed is 6 km/h.

• Acceleration occurred because speed increased.
• Acceleration occurred because speed decreased.
• Acceleration occurred because you changed directions.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

What two things must you know to determine speed?

• distance and direction

• direction and time

• speed and direction

• time and distance