Free fall

What happens to the total distance that a ball travels as it falls off the side of a cliff?

• The distance remains constant

• The distance increases at a constant rate

• The distance between the points gets bigger and bigger

• The distance decreases at a constant rate

What happens to the velocity of a ball as it is dropped off a cliff?

• It decreases at a constant rate

• It increases at a constant rate

• It is constant

• It increases at a random rate

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.HS-PS2-1

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.

Tags

NGSS.HS-PS2-1

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

• 120.05 m

• 17.5 m

• 61.25 m

• 34.3 m

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 a constant velocity

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

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.

A man drops his camera off of the top of the oil derrick tower at Six Flags. Which of the following kinematic equations would he use in order to calculate the speed the camera was travelling when it hit the ground?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-1

NGSS.MS-PS3-5

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

• 10 m/s

• 20 m/s

• 30 m/s

• 40 m/s

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.HS-PS2-4