2.1:Picturing Motion

Which statement best describes a motion diagram?

• A graph of the time data on a horizontal axis and the position on the vertical axis

• A series of images showing the position of a moving object a equal time interval

• A diagram of the object motion replaced by dots.

• constant speed

• increasing speed

• decreasing speed

• no speed

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

How can you tell if an object is in motion?

• the object will look different

• I'll be able to see the forces

• It will remain in the same position

• Its position will change in relation to other objects

What must you be able to answer to describe an object's motion?

• who & what

• what & how

• when & where

• where & who

Replacing an object in a motion diagram with a single point is called the ____________.

• alternative model

• frame differential

• operational differential

• particle model

what are the speeds of the dots in these models ?

• 1 not moving

  2 constant

  3 decreasing

• 1 constant

  2 increasing

  3 decreasing

• 1 increasing

  2 constant

  3 decreasing

Tags

NGSS.MS-PS3-1

Which statement describes best the motion diagram of an object in motion?

• A graph of the time data on a horizontal axis and the position on a vertical axis

• A series of images showing the positions of a moving object at equal time intervals

• Diagram in which the object in motion is replaced by a series of single point

• A diagram that tells us the location of zero point of the object in motion and the direction in which the object is moving

A ​ (a)   shows a series of images showing the position of a moving object over equal time intervals​

• motion diagram
• dot diagram
• an acceleration
• alternative model

An object can change position along the path of all of these EXCEPT _______________.

• back-and-forth

• circle

• straight line

• dotted line

A motion diagram is a series of images of a moving object that records its position after ______________.

• 1/30 s

• it comes to rest

• equal time intervals

• an acceleration