Question 1

Suppose you are suddenly transported to a planet with 1/4 the radius of Earth but the same mass 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 2

Once a satellite's velocity at closest approach equals or exceeds the __________ velocity,it is in an unbound orbit.

Accepted Answer

A)  tangential 
B)  linear 
C)  circular 
D)  escape 
A)  tangential 
B)  linear 
C)  circular 
D)  escape

Question 3

In the figure below,the woman pushes on each object with the same force.If the resulting acceleration of the 100 kg object is 2 m/s2,then the acceleration of the 200 kg object is 1 m/s2.

Accepted Answer

A) True 
 B)False

Question 4

The force of gravity that an object has is directly related to its:

Accepted Answer

A)  inertia 
B)  size 
C)  mass 
D)  density 
A)  inertia 
B)  size 
C)  mass 
D)  density

Question 5

Astronauts in the space station feel weightless as they orbit the earth because there is no gravity acting on them.

Accepted Answer

A) True 
 B)False

Question 6

An empirical science is one that is based on:

Accepted Answer

A)  assumptions 
B)  calculus 
C)  computer models 
D)  observed data 
A)  assumptions 
B)  calculus 
C)  computer models 
D)  observed data

Question 7

If an object is moving in a circular orbit at a constant speed,which of the following is FALSE?

Accepted Answer

A)  Its acceleration is not zero. 
B)  Its acceleration is zero. 
C)  Its velocity is not zero. 
D)  There is an unbalanced force acting on it. 
A)  Its acceleration is not zero. 
B)  Its acceleration is zero. 
C)  Its velocity is not zero. 
D)  There is an unbalanced force acting on it.

Question 8

Astronauts orbiting Earth in the space shuttle feel weightless in space because:

Accepted Answer

A)  they are farther away from the Earth 
B)  they eat less food while in orbit 
C)  the added gravitational pull of the Moon balances the Earth's gravitational pull 
D)  they are in constant free fall around the Earth 
A)  they are farther away from the Earth 
B)  they eat less food while in orbit 
C)  the added gravitational pull of the Moon balances the Earth's gravitational pull 
D)  they are in constant free fall around the Earth

Question 9

Examine the figure below.If the acceleration of the container is 2 m/s2,with what force did the woman push?

Accepted Answer

F = ma = 2

Question 10

Johannes Kepler found that the gravitational force between the Sun and Earth is inversely proportional to the mass of the Sun.

Accepted Answer

A) True 
 B)False

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

Once a satellite's velocity at closest approach equals or exceeds the __________ velocity,it is in an unbound orbit.

In the figure below,the woman pushes on each object with the same force.If the resulting acceleration of the 100 kg object is 2 m/s²,then the acceleration of the 200 kg object is 1 m/s².

The force of gravity that an object has is directly related to its:

Astronauts in the space station feel weightless as they orbit the earth because there is no gravity acting on them.

An empirical science is one that is based on:

If an object is moving in a circular orbit at a constant speed,which of the following is FALSE?

Astronauts orbiting Earth in the space shuttle feel weightless in space because:

Examine the figure below.If the acceleration of the container is 2 m/s²,with what force did the woman push?

Johannes Kepler found that the gravitational force between the Sun and Earth is inversely proportional to the mass of the Sun.

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

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

Once a satellite's velocity at closest approach equals or exceeds the __________ velocity,it is in an unbound orbit.

In the figure below,the woman pushes on each object with the same force.If the resulting acceleration of the 100 kg object is 2 m/s2,then the acceleration of the 200 kg object is 1 m/s2.

The force of gravity that an object has is directly related to its:

Astronauts in the space station feel weightless as they orbit the earth because there is no gravity acting on them.

An empirical science is one that is based on:

If an object is moving in a circular orbit at a constant speed,which of the following is FALSE?

Astronauts orbiting Earth in the space shuttle feel weightless in space because:

Examine the figure below.If the acceleration of the container is 2 m/s2,with what force did the woman push?

Johannes Kepler found that the gravitational force between the Sun and Earth is inversely proportional to the mass of the Sun.

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

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

In the figure below,the woman pushes on each object with the same force.If the resulting acceleration of the 100 kg object is 2 m/s²,then the acceleration of the 200 kg object is 1 m/s².

Examine the figure below.If the acceleration of the container is 2 m/s²,with what force did the woman push?