Free Fall Problems

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

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

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

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 

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

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.MS-PS2-2

NGSS.MS-PS2-4

The acceleration of a freely falling body on Earth is

• 9.8 m/s.

• 9.8 m.

• 9.8 m/s².

• 9.8 s.

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

A ball is thrown upwards and caught when it comes back down. In the absence of air resistance, the

when would the ball reach a velocity of 0 m/s?

• at the top

• at the bottom

• in the middle

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-1

NGSS.MS-PS3-5

If an object is dropped from a cliff of 100m, what are your 'givens' you can start with?

CHECK ALL THAT APPLY.

• d = 100 m

• v_i = 0

• t = 100 s

• a = 9.8 m/s²

• v_f = 0

An object free falls for 3.5 seconds. How far does it fall?

• 120.05 m

• 17.15 m

• 60.03 m

• 34.3 m

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4