Question 1

How far must one travel to get away from Earth's gravitational field?

Accepted Answer

A)  to a region above Earth's atmosphere
B)  to a region well beyond the Moon
C)  to a region beyond the solar system
D)  Forget it; you can't travel far enough.E) C) and D)
F) None of the above

Question 2

Earth's gravitational field extends

Accepted Answer

A)  only above and beyond Earth's surface and cancels inside Earth.
B)  both inside and outside Earth and throughout the entire universe.
C)  neither A nor BD) A) and B)
E) All of the above

Question 3

If Earth's mass decreased to one-half its original mass with no change in radius, then your weight would

Accepted Answer

A)  decrease to one-quarter your original weight.
B)  decrease to one-half your original weight.
C)  stay the same.
D)  none of the aboveE) B) and D)
F) All of the above

Question 4

A projectile shot with an initial velocity of 141 m/s at an angle of 45° follows a parabolic path and hits a stationary balloon at the top if its trajectory. The speed it hits the balloon is

Accepted Answer

A)  0 m/s.
B)  50 m/s.
C)  100 m/s.
D)  141 m/s.E) None of the above
F) B) and C)

Question 5

The direction of a gravitational field is

Accepted Answer

A)  in the same direction of gravitational attraction.
B)  away from the center of gravity of an object.
C)  opposite to the direction of gravitational attraction.D) All of the above
E) A) and B)

Question 6

A gun with a muzzle velocity of 100 m/s is fired horizontally from a tower. Neglecting air resistance, where will the bullet be 1 s later?

Accepted Answer

A)  50 m downrange
B)  98 m downrange
C)  100 m downrange
D)  490 m downrange
E)  none of the aboveF) A) and C)
G) C) and E)

Question 7

Each of us weighs a tiny bit less inside the ground floor of a skyscraper than we do on the ground away from the skyscraper. The reason for this is the

Accepted Answer

A)  gravitational field is shielded inside the building.
B)  mass of the building attracts us upward slightly.
C)  both A and B
D)  none of the aboveE) A) and B)
F) A) and C)

Question 8

The amount of gravitational force that acts on the space shuttle while in orbit is

Accepted Answer

A)  nearly zero.
B)  almost as much as the shuttle's weight on Earth's surface.
C)  the same as the shuttle's weight on Earth's surface.D) B) and C)
E) A) and B)

Exam 5: Gravity

A gun with a muzzle velocity of 100 m/s is fired horizontally from a tower. Neglecting air resistance, where will the bullet be 1 s later?

Correct Answer
verified

A projectile shot with an initial velocity of 141 m/s at an angle of 45° follows a parabolic path and hits a stationary balloon at the top if its trajectory. The speed it hits the balloon is

Correct Answer
verified

Earth's gravitational field extends

Correct Answer
verified

How far must one travel to get away from Earth's gravitational field?

Correct Answer
verified

The direction of a gravitational field is

Correct Answer
verified

The amount of gravitational force that acts on the space shuttle while in orbit is

Correct Answer
verified

Each of us weighs a tiny bit less inside the ground floor of a skyscraper than we do on the ground away from the skyscraper. The reason for this is the

Correct Answer
verified

If Earth's mass decreased to one-half its original mass with no change in radius, then your weight would

Correct Answer
verified

Exam 5: Gravity

A gun with a muzzle velocity of 100 m/s is fired horizontally from a tower. Neglecting air resistance, where will the bullet be 1 s later?

Correct AnswerverifiedShow Answer

A projectile shot with an initial velocity of 141 m/s at an angle of 45° follows a parabolic path and hits a stationary balloon at the top if its trajectory. The speed it hits the balloon is

Correct AnswerverifiedShow Answer

Earth's gravitational field extends

Correct AnswerverifiedShow Answer

How far must one travel to get away from Earth's gravitational field?

Correct AnswerverifiedShow Answer

The direction of a gravitational field is

Correct AnswerverifiedShow Answer

The amount of gravitational force that acts on the space shuttle while in orbit is

Correct AnswerverifiedShow Answer

Each of us weighs a tiny bit less inside the ground floor of a skyscraper than we do on the ground away from the skyscraper. The reason for this is the

Correct AnswerverifiedShow Answer

If Earth's mass decreased to one-half its original mass with no change in radius, then your weight would

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified