GRAVITATIONAL REVIEW
1. Gravity is continuously applied to an object,
causing it to accelerate. After a period of time,
however, the object stops accelerating. What
conclusion can be drawn?
 a.
The mass of the object has increased.
 b.
Gravity on the object has increased.
 c.
The object reached terminal velocity.
 d.
The momentum of the object has reached a
maximum.
2. Of the following, the greatest gravitational force
would occur between
 a.
a marble and a baseball 5 meters apart.
 b.
a loaded freighter on the high seas and
Earth.
 c.
the moon and an astronaut standing on the
moon.
 d.
the moon and Earth.
3. Which of the following equations is correctly
showing the relationship between mass, weight
and gravitational force?
 a.
w = mg
c.
w = g/m
 b.
w = m/g
d.
w=g+m

4. When gravitational forces and air resistance
equalize on an object that is falling toward Earth
and the object stops accelerating, what is the
velocity of an object called?
 a.
resultant velocity
 c.
instantaneous velocity
 b.
terminal velocity
 d.
average velocity

5. In the absence of air resistance, how would
the acceleration of a 1.5 kg book and the
acceleration of a 15 kg rock differ if the objects
were dropped from the same height?
 a.
The book would accelerate twice as fast as
the rock.
 b.
The rock would accelerate twice as fast as
the book.
 c.
The book would accelerate ten times as fast
as the rock.
 d.
They would not differ; they would be the
same

6. What happens immediately after a sky diver
opens her parachute?
 a.
Air resistance greatly increases.
 b.
The sky diver is in free fall.
 c.
The sky diver’s speed greatly increases.
 d.
The force of gravity greatly increases.
7. The gravitational force between two objects
depends on masses of objects and
 a.
accelerations of objects.
 c.
speeds of objects.
 b.
distance between objects.
 d.
sizes of objects.

8. Which of the following objects exerts a
gravitational force?
 a.
a bowling ball
c.
a feather
 b.
a book
d.
All of the above

9. Increasing which of these conditions results in
more gravitational force between two objects?
 a.
distance
c.
mass
 b.
acceleration d.
surface area

10.When an object is in free fall, the only force
acting on it is
 a.
gravity.
c.
inertia.
 b.
friction.
d.
terminal velocity.

11.
 a.
 c.
 b.
 d.

Free-fall acceleration on the moon
depends on an object’s weight.
depends on an object’s mass.
is the same for all objects.
All of the above.
12. Orbital motion is a combination of
 a.
mass and friction.
 c.
acceleration and gravity.
 b.
forward motion and free fall.
 d.
weight and vertical velocity.

13. Which statement about weight is incorrect?
 a.
An object weighs more on the moon than it
weighs on Earth.
 b.
A change in an object’s location can change
the object’s weight.
 c.
An object’s weight is directly proportional to
its mass.
 d.
The weight of an object depends on gravity.

14. Astronauts “float” when inside an orbiting
spaceship because they are
 a.
weightless.
 c.
in free fall.
 b.
in a vacuum.
 d.
outside Earth’s gravity.

15. When air resistance balances the weight of a
falling object, the velocity
 a.
slowly decreases.
 c.
rapidly increases.
 b.
remains constant.
 d.
None of the above

16. Weight is best described as
 a.
an object’s resistance to acceleration.
 b.
what causes an object to fall.
 c.
the downward force exerted on an object due
to gravity.
 d.
a force solely dependent on an object’s mass.

17. Which of the following units is used to
measure acceleration?
 a.
m/s
 c.
m/s2
 b.
m●s
 d.
m2/s2

18. Which of the following is true?
 a.
Weight and mass are proportional but not
equal.
 b.
Weight is gravitational force an object
experiences due to its mass.
 c.
The weight of an object on Earth is greater
than the weight of the same object on the moon,
but the object’s mass stays the same.
 d.
All of the above

19. Near Earth’s surface, the strongest
gravitational force would occur between an
elephant and
 a.
the sun.
 c.
a cat.
 b.
the moon.
 d.
Earth.

20. When an object travels in a circular or nearly
circular path around another object, the object is
said to be in
 a.
a circle.
 c.
orbit.
 b.
free fall.
 d.
collision.

21. When completing the Orbital Motion Lab, you
found that
 a.
Objects with larger orbits travel at a faster
speed than objects with smaller orbits.
 b.
Objects with larger orbits travel at a slower
speed than objects with smaller orbits.
 c.
Objects with larger orbits travel the same
speed as objects with smaller orbits.
 d.
None of the above.

GRAVITATIONAL REVIEW
1. Gravity is continuously applied to an object,
causing it to accelerate. After a period of time,
however, the object stops accelerating. What
conclusion can be drawn?
 a.
The mass of the object has increased.
 b.
Gravity on the object has increased.
 c.
The object reached terminal velocity.
 d.
The momentum of the object has reached a
maximum.
2. Of the following, the greatest gravitational force
would occur between
 a.
a marble and a baseball 5 meters apart.
 b.
a loaded freighter on the high seas and
Earth.
 c.
the moon and an astronaut standing on the
moon.
 d.
the moon and Earth.
3. Which of the following equations is correctly
showing the relationship between mass, weight
and gravitational force?
 a.
w = mg
c.
w = g/m
 b.
w = m/g
d.
w=g+m

4. When gravitational forces and air resistance
equalize on an object that is falling toward Earth
and the object stops accelerating, what is the
velocity of an object called?
 a.
resultant velocity
 c.
instantaneous velocity
 b.
terminal velocity
 d.
average velocity

5. In the absence of air resistance, how would
the acceleration of a 1.5 kg book and the
acceleration of a 15 kg rock differ if the objects
were dropped from the same height?
 a.
The book would accelerate twice as fast as
the rock.
 b.
The rock would accelerate twice as fast as
the book.
 c.
The book would accelerate ten times as fast
as the rock.
 d.
They would not differ; they would be the
same

6. What happens immediately after a sky diver
opens her parachute?
 a.
Air resistance greatly increases.
 b.
The sky diver is in free fall.
 c.
The sky diver’s speed greatly increases.
 d.
The force of gravity greatly increases.
7. The gravitational force between two objects
depends on masses of objects and
 a.
accelerations of objects.
 c.
speeds of objects.
 b.
distance between objects.
 d.
sizes of objects.

8. Which of the following objects exerts a
gravitational force?
 a.
a bowling ball
c.
a feather
 b.
a book
d.
All of the above

9. Increasing which of these conditions results in
more gravitational force between two objects?
 a.
distance
c.
mass
 b.
acceleration d.
surface area

10.When an object is in free fall, the only force
acting on it is
 a.
gravity.
c.
inertia.
 b.
friction.
d.
terminal velocity.

11.
 a.
 c.
 b.
 d.

Free-fall acceleration on the moon
depends on an object’s weight.
depends on an object’s mass.
is the same for all objects.
All of the above.
12. Orbital motion is a combination of
 a.
mass and friction.
 c.
acceleration and gravity.
 b.
forward motion and free fall.
 d.
weight and vertical velocity.

13. Which statement about weight is incorrect?
 a.
An object weighs more on the moon than it
weighs on Earth.
 b.
A change in an object’s location can change
the object’s weight.
 c.
An object’s weight is directly proportional to
its mass.
 d.
The weight of an object depends on gravity.

14. Astronauts “float” when inside an orbiting
spaceship because they are
 a.
weightless.
 c.
in free fall.
 b.
in a vacuum.
 d.
outside Earth’s gravity.

15. When air resistance balances the weight of a
falling object, the velocity
 a.
slowly decreases.
 c.
rapidly increases.
 b.
remains constant.
 d.
None of the above

16. Weight is best described as
 a.
an object’s resistance to acceleration.
 b.
what causes an object to fall.
 c.
the downward force exerted on an object due
to gravity.
 d.
a force solely dependent on an object’s mass.

17. Which of the following units is used to
measure acceleration?
 a.
m/s
 c.
m/s2
 b.
m●s
 d.
m2/s2

18. Which of the following is true?
 a.
Weight and mass are proportional but not
equal.
 b.
Weight is gravitational force an object
experiences due to its mass.
 c.
The weight of an object on Earth is greater
than the weight of the same object on the moon,
but the object’s mass stays the same.
 d.
All of the above

19. Near Earth’s surface, the strongest
gravitational force would occur between an
elephant and
 a.
the sun.
 c.
a cat.
 b.
the moon.
 d.
Earth.

20. When an object travels in a circular or nearly
circular path around another object, the object is
said to be in
 a.
a circle.
 c.
orbit.
 b.
free fall.
 d.
collision.

21. When completing the Orbital Motion Lab, you
found that
 a.
Objects with larger orbits travel at a faster
speed than objects with smaller orbits.
 b.
Objects with larger orbits travel at a slower
speed than objects with smaller orbits.
 c.
Objects with larger orbits travel the same
speed as objects with smaller orbits.
 d.
None of the above.
