Free Fall Problems

What is your last name?

What class are you in?

• A1 Hnr Physics

• A2 Std Physics

• A3 Hnr Physics

• B1 Hnr Physics

• B4 Hnr Physics

Which would fall with greater acceleration in a vacuum—a leaf or a stone?

• the leaf
• the stone
• They would accelerate at the same rate.
• It is difficult to determine without more information.

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-PS2-2

NGSS.MS-PS2-4

Juan is standing on the top observation deck of the Eiffel Tower in Paris at a height of 300 meters. He drops his cell phone. How fast will the phone be traveling when it hits the ground?

• 9.8 m/s

• 76.68 m/s

• 149.76 m/s

• 46.99 m/s

If an object is in free fall for three seconds, how fast will it be falling?

• 9.8 m/s

• 19.6 m/s

• 29.4 m/s

• 39.2 m/s

Tags

NGSS.HS-PS2-1

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

Tags

NGSS.MS-PS2-2

What values are always known for a free falling object?

• v_i = 0 m/s
   a = -9.8 m/s²
• v_i = -9.8 m/s
   a = -9.8 m/s²
• v_i = -9.8 m/s
   a = 0 m/s²
• d = -9.8 m
  v_i = 0 m/s

Tags

NGSS.MS-PS2-2

A ball is thrown up in the air with an initial velocity of 40 m/s. What is the ball's velocity when you catch it? 

• 0 m/s 
• ~20 m/s traveling upward
• ~20 m/s traveling downward
• ~40 m/s traveling downward

An object is tossed vertically and free falls. Identify the point on the graph that corresponds to the time when the object reached its maximum height.

• W

• X

• Y

• Z