Free Fall (hard)

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 uniform rate
• The distance increases at a nonuniform rate 
• The distance decreases at a uniform rate

Tags

NGSS.HS-PS2-4

Approximately how far can an object fall in 5 seconds?

• 5 m

• 25 m

• 50 m

• 125 m

Tags

NGSS.HS-PS2-1

A free falling objects falls under the influence of the

• force of air

• force of gravity

• force of resistance

• net force

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

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

A ball is thrown upward in the air with an initial velocity of 40 m/s. How long does it take to reach its highest point in the air?

• 2 seconds

• 1 seconds

• 3 seconds

• 4 seconds

Tags

NGSS.HS-PS2-4

A freely falling object starts from rest. After falling for 6 seconds, it will have a speed of about:

• 6 m/s

• 30 m/s

• 60 m/s

• 300 m/s

Tags

NGSS.HS-PS2-1

Which would hit the ground first if dropped from the same height in a vacuum—a feather or a metal ball?

• the feather

• the metal ball

• They would hit the ground at the same time.

• They would not fall at all in a vacuum.

Tags

NGSS.HS-PS2-4

What is acceleration of an object flying upward during free fall?

• + 9.8 m/s²

• - 9.8 m/s²

• + 9.8 m/s

• -9.8 m/s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A base jumper with an initial horizontal speed of 8 m/s dives off a building. 5.6 seconds later, he hits the target below. Find the height of the building.

• 27 m

• 52 m

• 110 m

• 154 m

In a normal environment, why does a bowling ball and feather hit the ground at different times when dropped from the same height?

• They don't; they hit the ground at the same time.
• One is more dense than the other.
• One is heavier than the other.
• Air resistance