Free Fall and Kinematics

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? Ignore the effect of air resistance.

• 9.8 m/s

• 76.68 m/s

• 149.76 m/s

• 46.99 m/s

Tags

NGSS.HS-PS2-4

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

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.HS-PS2-1

What does this graph represent?

• Constant Speed
• Acceleration
• Not moving

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?

• 
• 
• 
• 

Alexis is riding her bike around town. She travels 43.2 m to the right, and then turns around to bike an additional 30 m to the left. Determine the velocity of Alexis's bike ride if it takes her 39.4 seconds to complete her motion.

• 2 m/s to the right

• 2 m/s to the left

• 0.3 m/s to the right

• 0.3 m/s to the left

What does a constant velocity do tour our acceleration?

• Acceleration increases

• Acceleration decreases

• Acceleration is zero

• Acceleration is not affected by velocity

Tags

NGSS.HS-PS2-1

A Frisbee is tossed from rest and reaches a top velocity of +54 m/s in 3.2 seconds. Determine the displacement of the Frisbee's motion.

• -170 m

• +76 m

• +170 m

• -76 m

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

NGSS.MS-PS2-4