Motion

Which of the following dot diagrams shows an object that is accelerating

• A

• B

• Neither object is accelerating

• You can not tell from the dot diagram

Tags

NGSS.MS-PS2-2

• constant speed

• increasing speed

• decreasing speed

• no speed

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

• constant speed

• increasing speed

• decreasing speed

• no speed

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A place or object used for comparison to determine if another object is in motion is called a

• comparison point
• reference point
• point of view
• motion detector

What is velocity?

• the quickness of an object
• the location of an object
• acceleration
• speed in a specific direction

What is the changing of position over time?

• motion

• reference point

• acceleration

• speed

Tags

NGSS.MS-PS2-2

_______ is the length of the path between two points.

• distance

• reference

• statistic

• law

Jeff is in a stationary school bus. Which is the best reference point for him to use to determine when the bus starts to move?

• the front entrance of the school

• the school bus sitting next to him

• a car waiting to pick up another student

• a student walking on the sidewalk

Choose the answer that best fits: Acceleration is the...

• change of speed and/or direction over time

• change of speed over time

• change of direction over time

• increase of speed

What is the unit for distance?

• feet (ft)

• meters (m)

• meters per second (m/s)

• meters per second per second (m/s/s or m/s²)