Free fall

Presentation

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Physics, Science

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10th - 12th Grade

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Practice Problem

•

Medium

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NGSS

HS-PS2-1, HS-PS2-4, MS-PS2-4

Standards-aligned

B Taylor

Used 121+ times

FREE Resource

13 Slides • 11 Questions

Free fall

Multiple Choice

If a ball is thrown up and lands at the same location, what was its acceleration?

-10 m/s² on the way up and +10 m/s² on the way down.

-10 m/s²the entire time.

+10 m/s² on the way up and -10 m/s² on the way down.

Multiple Choice

Free fall is

moving through the air under the influence of the force of gravity only.

not paying for a fall.

clothing sale with lots of orange & brown clothes.

a feather dropped from an airplane.

Multiple Choice

A textbook is dropped from a second floor window and falls to the ground. What happens to the acceleration as the book falls to the ground

the acceleration increases

the acceleration decreases

the acceleration remains constant

Multiple Choice

The state that exists when the only force acting on an object is gravity is called

free fall

inertia

acceleration

momentum

Multiple Choice

Heavier objects free fall faster than lighter objects.(in the absence of the air resistance)

True

False

Multiple Choice

Do free falling objects move at constant velocity or do they accelerate?

Falling objects accelerate at -9.8 m/s²

Falling object move at constant velocity

Falling objects accelerate at 100 m/s²

It depends on the mass: heavy objects accelerate, light objects do not

Multiple Choice

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

the feather

the metal bolt

They would hit the ground at the same time.

They would be suspended in a vacuum.

Multiple Choice

When there is no air resistance, objects of different masses dropped from rest

fall with equal accelerations and with equal displacements.

fall with different accelerations and with different displacements.

fall with equal accelerations and with different displacements.

fall with different accelerations and with equal displacements.

Multiple Choice

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.

Multiple Choice

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

Multiple Choice

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

Free fall

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