Free Fall Quiz

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

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.

Tags

NGSS.HS-PS2-4

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

What is the velocity of a ball that has been dropped off a cliff after 1 , 2, 3, 4, and 5 seconds? (assume g is rounded to 10 m/s²)?. 

• 10, 20, 30, 40, 50 m/s
• 5, 10, 15, 20, 25 m/s
• 5, 20, 45, 80,125 m
• 10,10,10,10,10 m/s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

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

• 10 m/s²

• 10 m/s

• 0 m/s²

• 0 m/s

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-PS2-4

A ball is thrown up in the air with an initial velocity of 40 m/s. What is the ball's velocity after 2 seconds? 

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

Tags

NGSS.HS-PS2-1

A ball is thrown up in the air with an initial velocity of 40 m/s. What is the ball's velocity after 6 seconds? 

• 20 m/s traveling upward.
• 10 m/s traveling downward.
• 20 m/s traveling downward. 
• 30 m/s traveling downward. 

Tags

NGSS.HS-PS2-1

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

• less than the speed it had when thrown upwards.
• more than the speed it had when thrown upwards.
• the same as the speed it had when thrown upwards.

Tags

NGSS.HS-PS2-2

If a ball is thrown straight up in the air with a speed of 50m/s, what would it's maximum height be? (Answer should be in the form 75m )

• 50m

• 250m

• 125m

• 100m