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WorksheetsFreeFall
Total questions: 16
Worksheet time: 11mins
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.
If a freely falling object were somehow equipped with a speedometer, its speed reading would increase each second by
its rate depends on its initial speed
about 15 m/s
about 10 m/s
about 5 m/s
Which of the following statements applies to the motion of a ball tossed upward?
I. It has constant acceleration on the way up
II. It has constant acceleration at the top of its path
III. It has constant acceleration as it moves downward.
I only
I and III
III only
All are correct
Which object would fall with greater acceleration in a vacuum - leaf or pebble?
The leaf
The pebble
Difficult to determine without more information
Both accelerate at the same rate
If you throw a ball straight up, what is its velocity at the highest point?
9.81 m/s2
0.0 m/s2
9.81 m/s
0.0 m/s
A ball is tossed upward and caught at the same position of throw. In the absence of air resistance, the speed of the ball when it is caught would be
less than the speed it had when tossed upwards
the same as the speed it had when tossed upwards
more than the speed it had when tossed upwards
If air resistance is ignored, objects of different masses when dropped from rest
fall with equal accelerations and with equal displacements
fall with equal accelerations and with different displacements
fall with different accelerations and with different displacements
fall with different accelerations and with equal displacements
A hammer is dropped on Earth and the Moon. If gravitational pull on the Moon is about six times weaker than on Earth, where does a hammer fall faster?
Moon
Earth
No difference
Depends on the mass of the hammer
The state that exists when the only force acting on an object is gravity is called
momentum
acceleration
inertia
free fall
The standard acceleration due to gravity (or standard acceleration of free fall), is the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth. It is defined by standard as:
9.8 m/s.
9.8 m.
9.8 m/s2.
9.8 s.
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
If an object is free falling onto the Moon, which of the following would be correct?
It would accelerate at 9.8 m/s2
It would not encounter any air resistance.
It would not fall because the Moon has no gravity.
It would impact the surface and bounce back into space.
Heavier objects free fall faster than lighter objects in the absence of air resistance.
True
False
How do free falling objects move?
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
What values are always known for a free falling object?
d = -9.8 m vi = 0 m/s
vi = -9.8 m/s a = -9.8 m/s2
vi = -9.8 m/s a = 0 m/s2
vi = 0 m/s a = -9.8 m/s2
A baseball catcher throws a ball vertically upward and catches it in the same spot as it returns to the mitt. At what point in the ball’s path does it experience zero velocity and nonzero acceleration at the same time?
the instant it leaves the catcher’s hand
midway on the way up
at the top of its path
the instant before it arrives in the catcher’s mitt
