Question 1

Once two objects are far enough away from each other,they no longer exert any gravitational attraction on each other.

Accepted Answer

A) True 
 B)False  False

Question 2

Newton's first law states that objects in motion:

Accepted Answer

A)  eventually come to rest 
B)  experience an unbalanced force 
C)  experience a nonzero acceleration 
D)  stay in motion 
A)  eventually come to rest 
B)  experience an unbalanced force 
C)  experience a nonzero acceleration 
D)  stay in motion D

Question 3

If your weight on Earth was 500 N,what would your weight be on the Moon?

Accepted Answer

A)  83 N 
B)  125 N 
C)  250 N 
D)  500 N 
A)  83 N 
B)  125 N 
C)  250 N 
D)  500 N A

Question 4

In terms of frames of reference,explain why an object moving in a straight line at constant speed remains in motion.

Accepted Answer

Because in its frame

Question 5

What information would you need to obtain about one of the moons of the planet Jupiter in order to measure the mass of Jupiter?

Accepted Answer

You would need to know the sem

Question 6

A planet travels fastest when it is closest to the Sun.

Accepted Answer

A) True 
 B)False

Question 7

Your weight is directly proportional to your ___________.

Accepted Answer

A)  height 
B)  age 
C)  mass 
D)  altitude 
A)  height 
B)  age 
C)  mass 
D)  altitude

Question 8

Examine the figure below.If the woman pushes with a force of 200 N,what is the acceleration of the container?

Accepted Answer

a = F/m =

Question 9

List at least three discoveries Galileo made by making astronomical observations through a telescope.

Accepted Answer

Answers may include sunspots,c

Question 10

In a period of three months,a planet travels 30,000 km with an average speed of 10.5 km/s.Some time later,the same planet travels 65,000 km in three months.How fast is the planet traveling at this later time? During which period is the planet closer to the Sun?

Accepted Answer

At the later time,because the planet is

Question 11

According to Newton's third law,forces come in pairs.Two forces in the figure below are labeled.Label the other half of the pairs.

Accepted Answer

For the force of the rope they

Question 12

In the figure below,if the acceleration of the container is 2 m/s2,with what force did the woman push?

Accepted Answer

A)  50 N 
B)  100 N 
C)  150 N 
D)  200 N 
A)  50 N 
B)  100 N 
C)  150 N 
D)  200 N

Question 13

Suppose you are suddenly transported to a planet with 1/4 the mass of Earth but the same radius as the Earth.Your weight would __________ by a factor of __________.

Accepted Answer

A)  increase; 4 
B)  increase; 16 
C)  decrease; 4 
D)  decrease; 16 
A)  increase; 4 
B)  increase; 16 
C)  decrease; 4 
D)  decrease; 16

Question 14

Mass and weight are different names for the same physical property of matter.

Accepted Answer

A) True 
 B)False

Question 15

In a spaceship orbiting Earth,two astronauts want to measure the mass of a mouse.How can they easily do it if they are in constant free fall?

Accepted Answer

A)  Place the mouse on a spring-loaded scale and weigh it. 
B)  Measure the gravitational attraction between the mouse and a steel ball of known mass. 
C)  Drop the mouse from the top of the shuttle to its bottom. 
D)  Push on the mouse with a known force and measure its acceleration. 
A)  Place the mouse on a spring-loaded scale and weigh it. 
B)  Measure the gravitational attraction between the mouse and a steel ball of known mass. 
C)  Drop the mouse from the top of the shuttle to its bottom. 
D)  Push on the mouse with a known force and measure its acceleration.

Question 16

In the figure below,if the woman pushes with a force of 50 N,what will the acceleration of the container be?

Accepted Answer

A)  0.5 m/s2 
B)  0.75 m/s2 
C)  1 m/s2 
D)  2 m/s2 
A)  0.5 m/s2 
B)  0.75 m/s2 
C)  1 m/s2 
D)  2 m/s2

Question 17

The natural tendency of an object to resist changes in motion is called:

Accepted Answer

A)  inertia 
B)  weight 
C)  acceleration 
D)  mass 
A)  inertia 
B)  weight 
C)  acceleration 
D)  mass

Question 18

What is your acceleration if you go from 0 to 30 m/s in 3 seconds?

Accepted Answer

A)  5 m/s2 
B)  10 m/s2 
C)  15 m/s2 
D)  30 m/s2 
A)  5 m/s2 
B)  10 m/s2 
C)  15 m/s2 
D)  30 m/s2

Question 19

In the absence of air friction,a 0.001-kg piece of paper and a 0.1-kg notebook are dropped from the same height and allowed to fall to the ground.How do their accelerations compare?

Accepted Answer

A)  The accelerations are the same. 
B)  The notebook's acceleration is 100 times faster than the paper's acceleration. 
C)  The notebook's acceleration is 1,000 times faster than the paper's acceleration. 
D)  The paper's acceleration is 100 times faster than the notebook's acceleration. 
A)  The accelerations are the same. 
B)  The notebook's acceleration is 100 times faster than the paper's acceleration. 
C)  The notebook's acceleration is 1,000 times faster than the paper's acceleration. 
D)  The paper's acceleration is 100 times faster than the notebook's acceleration.

Question 20

If a 100-kg asteroid collides with Earth,causing the asteroid to decelerate in one second from 1,000 m/s to 0 m/s,what acceleration will Earth experience according to Newton's third law? (Earth has a mass of approximately 6 × 1024 kg.)

Accepted Answer

According to Newton's third law,the forc

Once two objects are far enough away from each other,they no longer exert any gravitational attraction on each other.

Newton's first law states that objects in motion:

If your weight on Earth was 500 N,what would your weight be on the Moon?

In terms of frames of reference,explain why an object moving in a straight line at constant speed remains in motion.

What information would you need to obtain about one of the moons of the planet Jupiter in order to measure the mass of Jupiter?

A planet travels fastest when it is closest to the Sun.

Your weight is directly proportional to your ___________.

Examine the figure below.If the woman pushes with a force of 200 N,what is the acceleration of the container?

List at least three discoveries Galileo made by making astronomical observations through a telescope.

In a period of three months,a planet travels 30,000 km with an average speed of 10.5 km/s.Some time later,the same planet travels 65,000 km in three months.How fast is the planet traveling at this later time? During which period is the planet closer to the Sun?

According to Newton's third law,forces come in pairs.Two forces in the figure below are labeled.Label the other half of the pairs.

In the figure below,if the acceleration of the container is 2 m/s²,with what force did the woman push?

Suppose you are suddenly transported to a planet with 1/4 the mass of Earth but the same radius as the Earth.Your weight would by a factor of .

Mass and weight are different names for the same physical property of matter.

In a spaceship orbiting Earth,two astronauts want to measure the mass of a mouse.How can they easily do it if they are in constant free fall?

In the figure below,if the woman pushes with a force of 50 N,what will the acceleration of the container be?

The natural tendency of an object to resist changes in motion is called:

What is your acceleration if you go from 0 to 30 m/s in 3 seconds?

In the absence of air friction,a 0.001-kg piece of paper and a 0.1-kg notebook are dropped from the same height and allowed to fall to the ground.How do their accelerations compare?

If a 100-kg asteroid collides with Earth,causing the asteroid to decelerate in one second from 1,000 m/s to 0 m/s,what acceleration will Earth experience according to Newton's third law? (Earth has a mass of approximately 6 × 10²⁴ kg.)

Our Place in the Universe

Patterns in the Skymotions of Earth

Light and Telescopes

The Formation of Stars and Planets

Terrestrial Worlds in the Inner Solar System

Atmospheres of Venus, Earth, and Mars

The Giant Planets

Small Bodies of the Solar System

Measuring the Stars

Our Star: The Sun

Evolution of Low-Mass Stars

Evolution of High-Mass Stars

The Expansion of Space

The Realm of the Galaxies

Our Galaxy: The Milky Way

Modern Cosmology and the Origin of Structure

Life in the Universe

Filters

Exam 3: Laws of Motion

Once two objects are far enough away from each other,they no longer exert any gravitational attraction on each other.

Newton's first law states that objects in motion:

If your weight on Earth was 500 N,what would your weight be on the Moon?

In terms of frames of reference,explain why an object moving in a straight line at constant speed remains in motion.

What information would you need to obtain about one of the moons of the planet Jupiter in order to measure the mass of Jupiter?

A planet travels fastest when it is closest to the Sun.

Your weight is directly proportional to your ___________.

Examine the figure below.If the woman pushes with a force of 200 N,what is the acceleration of the container?

List at least three discoveries Galileo made by making astronomical observations through a telescope.

In a period of three months,a planet travels 30,000 km with an average speed of 10.5 km/s.Some time later,the same planet travels 65,000 km in three months.How fast is the planet traveling at this later time? During which period is the planet closer to the Sun?

According to Newton's third law,forces come in pairs.Two forces in the figure below are labeled.Label the other half of the pairs.

In the figure below,if the acceleration of the container is 2 m/s2,with what force did the woman push?

Suppose you are suddenly transported to a planet with 1/4 the mass of Earth but the same radius as the Earth.Your weight would __________ by a factor of __________.

Mass and weight are different names for the same physical property of matter.

In a spaceship orbiting Earth,two astronauts want to measure the mass of a mouse.How can they easily do it if they are in constant free fall?

In the figure below,if the woman pushes with a force of 50 N,what will the acceleration of the container be?

The natural tendency of an object to resist changes in motion is called:

What is your acceleration if you go from 0 to 30 m/s in 3 seconds?

In the absence of air friction,a 0.001-kg piece of paper and a 0.1-kg notebook are dropped from the same height and allowed to fall to the ground.How do their accelerations compare?

If a 100-kg asteroid collides with Earth,causing the asteroid to decelerate in one second from 1,000 m/s to 0 m/s,what acceleration will Earth experience according to Newton's third law? (Earth has a mass of approximately 6 × 1024 kg.)

Our Place in the Universe

Patterns in the Skymotions of Earth

Light and Telescopes

The Formation of Stars and Planets

Terrestrial Worlds in the Inner Solar System

Atmospheres of Venus, Earth, and Mars

The Giant Planets

Small Bodies of the Solar System

Measuring the Stars

Our Star: The Sun

Evolution of Low-Mass Stars

Evolution of High-Mass Stars

The Expansion of Space

The Realm of the Galaxies

Our Galaxy: The Milky Way

Modern Cosmology and the Origin of Structure

Life in the Universe

Filters

In the figure below,if the acceleration of the container is 2 m/s²,with what force did the woman push?

Suppose you are suddenly transported to a planet with 1/4 the mass of Earth but the same radius as the Earth.Your weight would by a factor of .

If a 100-kg asteroid collides with Earth,causing the asteroid to decelerate in one second from 1,000 m/s to 0 m/s,what acceleration will Earth experience according to Newton's third law? (Earth has a mass of approximately 6 × 10²⁴ kg.)