Free Fall 2020

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

• It decreases at a uniform rate 
• It increases at a uniform rate 
• It is constant 
• It increases at a non-uniform rate

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

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

If you throw a baseball straight up, what is its velocity at the highest point?

• 9.8 m/s²
• 9.8 m/s
• 0 m/s²
• 0 m/s

Tags

NGSS.MS-PS2-4

A baseball is thrown up into the air. What happens to the acceleration as the ball rises in the air?

• the acceleration increases

• the acceleration decreases

• the acceleration remains constant

Tags

NGSS.MS-PS2-2

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

A free falling objects falls under the influence of the

• force of air

• force of gravity

• force of resistance

• net force

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.

Which of the following graphs best represents free fall motion?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

What does this graph represent?

• Constant Speed
• Acceleration
• Not moving

Tags

NGSS.MS-PS3-1