Which of the following is an example of velocity?

• 25 m/s

• 1500 km/hr

• 55 m/h south

• all of the above

What time period shows a constant speed?

• 0 seconds to 12.5 seconds

• 5 seconds to 10 seconds

• 10 seconds to 12.5 seconds

• none of the above

What time period shows positive acceleration?

• 0 seconds to 10 seconds

• 5 seconds to 8 seconds

• 4 seconds to 10 seconds

• 0 seconds to 4 seconds

Tags

NGSS.MS-PS2-2

How are speed and velocity different?

• Speed has a distance while velocity does not.

• Velocity has a direction while speed does not.

• There is no difference between speed and velocity.

• Speed is calculated distance / time while velocity is calculated time / distance.

Tags

NGSS.MS-PS3-1

The speed of an object in a particular direction is known as which of the following?

• Motion

• Acceleration

• Speed

• Reference Point

• Velocity

Velocity can change if ....( select all the correct choices)

• a reference point chages

• both time and distance changes

• direction changes

• speed changes

• both speed and direction changes

Tags

NGSS.MS-PS3-1

A car maintains the speed of 15 m/h while turning left. Which of the following is true?

• The car changed velocity because it slowed its speed.

• The car did not change velocity.

• The car changed velocity because the speed and direction changed.

• The car changed velocity because it increased its speed.

• The car changed velocity because the direction changed.

A runner ran 10 miles/minute in a straight line. Which of the following is true?

• The runner changed direction which means a change in velocity

• The runner had centripetal acceleration

• The runner had a change in speed and direction

• The runner had an increase in speed which means a change in velocity.

• The runner had no change in velocity

The rate at which velocity changes in a given amount of time is know as which of the following?

• Direction

• Distance

• Speed

• Motion

• Acceleration

The graph shows which of the following?

• Positive Acceleration

• Negative Acceleration

• Centripetal Acceleration

• No Acceleration

Tags

NGSS.MS-PS3-1