Free-falling objects/Driving off a cliff

If you drop a banana, how fast is it going after 2 seconds?(neglect air resistance) 

• 4.9m/s
• 9.8m/s
• 19.6m/s
• 29.4m/s

Tags

NGSS.HS-PS2-1

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.HS-PS2-1

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

• -9.8 m/s²

• -9.8 m/s

• 0 m/s²

• 0 m/s

Tags

NGSS.HS-PS2-1

If car A is horizontally driving off a cliff at the same moment car B is pushed from the same cliff, which has a larger vertical speed when they hit the ground?(neglect air resistance) 

• Car A
• Car B
• Same for Both
• heavier car

Tags

NGSS.HS-PS2-4

From the same height (and at the same time), one ball is dropped and another ball is fired horizontally. Which one will hit the ground first?

• the “dropped” ball

• the “fired” ball

• they both hit at the same time

• it depends on how hard the ball was fired

• it depends on the initial height

Tags

NGSS.HS-PS2-1

For a Case 1 Free Fall (Dropped), the initial velocity is ___.

• zero

• constant

• increasing

• decreasing

For a Case 1 Free Fall (Dropped), the initial velocity is ___.

• zero

• constant

• increasing

• decreasing

For a Case 2 Free Fall ("Thrown Down"), the initial velocity is ___.

• zero

• greater than zero and is directed downward

• greater than zero and is directed upward

• constant

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 an object is dropped from a cliff of 100m, what are your 'givens' you can start with?

ANSWER ALL THAT APPLY

• d = 100 m

• v_i = 0

• t = 100 s

• a = 9.8 m/s²

• v_f = 0

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4