free fall is any motion of a body where is the only force acting upon it

• body attraction

• tension

• gravity

• velocity

Tags

NGSS.HS-PS2-4

the final velocity for the falling object is zero

• TRUE

• FALSE

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

A paint brush is dropped from the top of a tall ladder and free falls to the ground. What changes, if any, would be observed of the velocity of the brush as it falls?

• The velocity increases.

• The velocity decreases.

• The velocity remains a constant value.

Tags

NGSS.HS-PS2-1

A paint brush is dropped from the top of a tall ladder and free falls to the ground. What changes, if any, would be observed of the acceleration of the brush as it falls?

• The acceleration increases.

• The acceleration decreases.

• The acceleration remains a constant value.

Tags

NGSS.HS-PS2-1

Baby elephant experience greater force of gravity than the child

• TRUE

• FALSE

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

Two rocks with different size and mass are dropped from the same height. Which of the rock will reach the ground first?

• greater rock

• smaller rock

• both reach the ground at the same time

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

Which of the following graphs best represents free fall motion?

• 
• 
• 
• 

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5