Free Fall

Which of the dot diagrams best describe the motion of a free-falling object that is dropped from rest?

• Diagram A

• Diagram B

• Diagram C

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

Which graph could represent an acceleration-time graph for an object dropped at a height above the Earth?

• 
• 
• 
• 

Tags

NGSS.HS-PS2-1

Which graph could represent a velocity-time graph for an object dropped at a height above the Earth?

• 
• 
• 
• 

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A textbook is dropped from a second floor window and falls to the ground. What happens to the velocity as the book falls to the ground

• the velocity increases

• the velocity decreases

• the velocity remain constant

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A textbook is dropped from a second floor window and falls to the ground. What happens to the acceleration as the book falls to the ground

• the acceleration increases

• the acceleration decreases

• the acceleration remains constant

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A textbook is dropped from a second floor window and falls to the ground. What direction is the velocity?

• upward

• downward

Tags

NGSS.HS-PS2-1

A textbook is dropped from a second floor window and falls to the ground. What direction is the acceleration?

• upward

• downward

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

When there is no air resistance, objects of different masses dropped from rest

• fall with equal accelerations and with equal displacements.
• fall with different accelerations and with different displacements.
• fall with equal accelerations and with different displacements.
• fall with different accelerations and with equal displacements.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

The change in velocity in a given time period is?

• Vi
• Vf
• a
• d

Tags

NGSS.HS-PS2-1

When speed and direction remain the same throughout a motion, this is called?

• Accelerated motion
• Constant motion
• Changing motion
• Changing velocity