Question 1

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 2

What is your acceleration if you go from 0 to 60 mph in 4 seconds?

Accepted Answer

A)  60 mph/s 
B)  30 mph/s 
C)  15 mph/s 
D)  8.5 mph/s 
A)  60 mph/s 
B)  30 mph/s 
C)  15 mph/s 
D)  8.5 mph/s

Question 3

What acceleration would result from a 5-N force acting on a 3-kg object? (A Newton [N] has units of kg m/s².)

Accepted Answer

a = F/m =

Question 4

Suppose you are suddenly transported to a planet with one-fourth the radius of Earth but the same mass as 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 5

Which of the following did NOT require the use of a telescope to observe?

Accepted Answer

A)  spots on the Sun 
B)  retrograde motion of the planets 
C)  phases of Venus 
D)  Jupiter's moons 
A)  spots on the Sun 
B)  retrograde motion of the planets 
C)  phases of Venus 
D)  Jupiter's moons

Question 6

Explain the difference between being weightless and being in free fall.

Accepted Answer

Feeling weightless comes from being on a

Question 7

The force of gravity between Earth and the Sun is ________ the force of gravity between Earth and the Moon.For reference,the average distance between Earth and the Moon is 0.003 AU,the mass of the Moon is 7 × 10²² kg,and the mass of the Sun is 2 × 10³⁰ kg.

Accepted Answer

A)  86,000 times larger than 
B)  260 times larger than 
C)  140 times smaller than 
D)  6,400 times smaller than 
A)  86,000 times larger than 
B)  260 times larger than 
C)  140 times smaller than 
D)  6,400 times smaller than

Question 8

How much would the force of Earth's gravity at its surface differ if the Earth's volume were increased 125 times while its mass was increased 25 times?

Accepted Answer

A)  25 times less 
B)  25 times larger 
C)  no difference 
D)  125 times less 
A)  25 times less 
B)  25 times larger 
C)  no difference 
D)  125 times less

Question 9

How much stronger is the gravitational force of the Sun on Earth compared to the gravitational force of the Sun on Pluto? Note that Pluto's semimajor axis is 40 AU,and its mass is 0.002 times the mass of Earth.

Accepted Answer

The force of gravity between a planet of

Question 10

Astronauts feel "weightless" on the Moon.Using Newton's universal law of gravitation,explain why astronauts experience this feeling.

Accepted Answer

Because the mass of the Moon is smaller

Question 11

Is there a difference in your weight between when you are on top of a mountain at 1,000 meters above sea level compared to when you are sitting in a classroom at 10 meters above sea level?

Accepted Answer

Yes,you weigh less on the mountaintop be

Question 12

In the figure below,draw an arrow representing the direction of the acceleration in each case.If the acceleration is zero,write zero.

Accepted Answer

The students should draw arrow

Question 13

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 14

Given a constant acceleration from rest,how is the increase in speed computed?

Accepted Answer

The speed of an object moving

Question 15

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 16

What is the weight of a 100 kg mass on the moon?

Accepted Answer

A)  9.8 Newtons 
B)  980 Newtons 
C)  100 Newtons 
D)  163 Newtons 
A)  9.8 Newtons 
B)  980 Newtons 
C)  100 Newtons 
D)  163 Newtons

Question 17

You apply a force of 10 N to a grocery cart in order to get an acceleration of 0.5 m/s².If you apply a force of 20 N to the same grocery cart,its acceleration will be:

Accepted Answer

A)  10 m/s2 
B)  1 m/s2. 
C)  0.5 m/s2. 
D)  0.25 m/s2. 
A)  10 m/s2 
B)  1 m/s2. 
C)  0.5 m/s2. 
D)  0.25 m/s2.

Question 18

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 19

If a 100-kg astronaut pushes on a 5,000-kg satellite and the satellite experiences an acceleration of 0.1 m/s²,what is the acceleration experienced by the astronaut in the opposite direction?

Accepted Answer

A)  5 m/s2 
B)  10 m/s2 
C)  50 m/s2 
D)  0.1 m/s2 
A)  5 m/s2 
B)  10 m/s2 
C)  50 m/s2 
D)  0.1 m/s2

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

What is your acceleration if you go from 0 to 60 mph in 4 seconds?

What acceleration would result from a 5-N force acting on a 3-kg object? (A Newton [N] has units of kg m/s².)

Suppose you are suddenly transported to a planet with one-fourth the radius of Earth but the same mass as Earth.Your weight would by a factor of .

Which of the following did NOT require the use of a telescope to observe?

Explain the difference between being weightless and being in free fall.

The force of gravity between Earth and the Sun is ________ the force of gravity between Earth and the Moon.For reference,the average distance between Earth and the Moon is 0.003 AU,the mass of the Moon is 7 × 10²² kg,and the mass of the Sun is 2 × 10³⁰ kg.

How much would the force of Earth's gravity at its surface differ if the Earth's volume were increased 125 times while its mass was increased 25 times?

How much stronger is the gravitational force of the Sun on Earth compared to the gravitational force of the Sun on Pluto? Note that Pluto's semimajor axis is 40 AU,and its mass is 0.002 times the mass of Earth.

Astronauts feel "weightless" on the Moon.Using Newton's universal law of gravitation,explain why astronauts experience this feeling.

Is there a difference in your weight between when you are on top of a mountain at 1,000 meters above sea level compared to when you are sitting in a classroom at 10 meters above sea level?

In the figure below,draw an arrow representing the direction of the acceleration in each case.If the acceleration is zero,write zero.

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

Given a constant acceleration from rest,how is the increase in speed computed?

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?

What is the weight of a 100 kg mass on the moon?

You apply a force of 10 N to a grocery cart in order to get an acceleration of 0.5 m/s².If you apply a force of 20 N to the same grocery cart,its acceleration will be:

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

If a 100-kg astronaut pushes on a 5,000-kg satellite and the satellite experiences an acceleration of 0.1 m/s²,what is the acceleration experienced by the astronaut in the opposite direction?

Thinking Like an Astronomer

Patterns in the Skymotions of Earth and the Moon

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

Measuring Galaxies

Our Galaxy: the Milky Way

The Evolution of the Universe

Formation of Structure

Life in the Universe

Filters

Exam 3: Laws of Motion

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

What is your acceleration if you go from 0 to 60 mph in 4 seconds?

What acceleration would result from a 5-N force acting on a 3-kg object? (A Newton [N] has units of kg m/s².)

Suppose you are suddenly transported to a planet with one-fourth the radius of Earth but the same mass as Earth.Your weight would ________ by a factor of ________.

Which of the following did NOT require the use of a telescope to observe?

Explain the difference between being weightless and being in free fall.

The force of gravity between Earth and the Sun is ________ the force of gravity between Earth and the Moon.For reference,the average distance between Earth and the Moon is 0.003 AU,the mass of the Moon is 7 × 10²² kg,and the mass of the Sun is 2 × 10³⁰ kg.

How much would the force of Earth's gravity at its surface differ if the Earth's volume were increased 125 times while its mass was increased 25 times?

How much stronger is the gravitational force of the Sun on Earth compared to the gravitational force of the Sun on Pluto? Note that Pluto's semimajor axis is 40 AU,and its mass is 0.002 times the mass of Earth.

Astronauts feel "weightless" on the Moon.Using Newton's universal law of gravitation,explain why astronauts experience this feeling.

Is there a difference in your weight between when you are on top of a mountain at 1,000 meters above sea level compared to when you are sitting in a classroom at 10 meters above sea level?

In the figure below,draw an arrow representing the direction of the acceleration in each case.If the acceleration is zero,write zero.

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

Given a constant acceleration from rest,how is the increase in speed computed?

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?

What is the weight of a 100 kg mass on the moon?

You apply a force of 10 N to a grocery cart in order to get an acceleration of 0.5 m/s².If you apply a force of 20 N to the same grocery cart,its acceleration will be:

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

If a 100-kg astronaut pushes on a 5,000-kg satellite and the satellite experiences an acceleration of 0.1 m/s²,what is the acceleration experienced by the astronaut in the opposite direction?

Thinking Like an Astronomer

Patterns in the Skymotions of Earth and the Moon

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

Measuring Galaxies

Our Galaxy: the Milky Way

The Evolution of the Universe

Formation of Structure

Life in the Universe

Filters

Suppose you are suddenly transported to a planet with one-fourth the radius of Earth but the same mass as Earth.Your weight would by a factor of .