Free Fall Concepts

A pumpkin is dropped from a 35 m building. What is its initial velocity (v_i)?

• 9.8 m/s²

• 35 m

• 0 m/s

• 9.8 m/s

What is the distance a ball falls after 1,2,3,4,5 seconds (assume g is rounded to 10 m/s²)?

• 10, 20, 30, 40, 50 m (meters)

• 5, 20, 45, 80,125 m (meters)

• 5, 10,15, 20, 25 m (meters)

• 10, 25, 60, 90,120 m (meters)

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

What is the velocity of a ball that has been dropped off a cliff after 1 , 2, 3, 4, and 5 seconds? (assume g is rounded to 10 m/s²)?. 

• 10, 20, 30, 40, 50 m/s

• 5, 10, 15, 20, 25 m/s

• 5, 20, 45, 80,125 m

• 10,10,10,10,10 m/s

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

What is the acceleration of a ball that is dropped off the side of a cliff after 1,2,3,4,5 seconds? (assume g is rounded to 10 m/s²)

• 5,10,15, 20, 25 m/s²

• 10, 20, 30, 40, 50 m/s²

• 5, 20, 45, 80, 125 m/s²

• 10,10,10,10,10 m/s²

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-5

When an object falls in physics world, what happens?

• It accelerates at a constant rate until it hits the ground

• It accelerates at a non-constant rate until it hits the ground

• It accelerates at a constant rate until it reaches terminal velocity

• It accelerates at a non-constant rate until it reaches terminal velocity

Tags

NGSS.HS-PS2-1

Which of the following statements applies to the motion of a ball rising and then falling in free fall?
I. The ball has constant acceleration as it moves upward.
II. The ball has constant acceleration at the top of its path.

III. The ball has constant acceleration as it moves downward.

• I only

• III only

• I and III

• I, II, and III

Tags

NGSS.HS-PS2-1

If a freely falling object were somehow equipped with a speedometer, its speed reading would increase each second by 

• about 5 m/s.

• about 10 m/s.

• about 15 m/s.

• a rate that depends on its initial speed.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-1

A ball is thrown upward in the air with an initial velocity of 40 m/s. How long does it take to reach back to the point it was thrown from?

• 4 seconds 

• 2 seconds 

• 6 seconds 

• 8 seconds 

The acceleration of a freely falling body on Earth is

• 9.8 m/s.

• 9.8 m.

• 9.8 m/s².

• 9.8 s.

Tags

NGSS.MS-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.MS-PS2-4