Question 1

The natural tendency of an object to remain at rest or in uniform straight-line motion is called _____________.

Accepted Answer

The answer of The natural tendency of an object to...

Question 2

The gravitational pull of Earth acting on an object is zero when the object

Accepted Answer

A)  has zero acceleration. 
B)  is in free fall. 
C)  is midway between Earth and the Moon. 
D)  is in orbit around Earth. 
E)  none of these 
A)  has zero acceleration. 
B)  is in free fall. 
C)  is midway between Earth and the Moon. 
D)  is in orbit around Earth. 
E)  none of these

Question 3

The angular momentum of a 30.0 kg object moving around a 50.0 m circle at a constant speed of 2.70 m/s is

Accepted Answer

A)  0.0 N 
B)  4050 N 
C)  109 N 
D)  81 N 
A)  0.0 N 
B)  4050 N 
C)  109 N 
D)  81 N

Question 4

The total linear momentum of an isolated system of masses remains the same if there are no external ______________ acting on the system.

Accepted Answer

A)  forces 
B)  torques 
C)  unbalanced forces 
D)  unbalanced torques 
A)  forces 
B)  torques 
C)  unbalanced forces 
D)  unbalanced torques

Question 5

In Newton's law of universal gravitation, F = Gm1m2/r2 for uniform objects, the quantity r is______________.

Accepted Answer

the distan

Question 6

The variables m1 and m2 that appear in the equation F = Gm1m2/r2 are

Accepted Answer

A)  the straight-line distance between the centers of each object. 
B)  the rate at which each object is moving. 
C)  the mass of each object. 
D)  the diameter of each object. 
A)  the straight-line distance between the centers of each object. 
B)  the rate at which each object is moving. 
C)  the mass of each object. 
D)  the diameter of each object.

Question 7

A change in motion requires a(n) ____________.

Accepted Answer

force (unb

Question 8

If the lever arm of a 5-N force is 7 m, what is the torque acting on the object due to this force?

Accepted Answer

A)  35 Nm 
B)  0.71 Nm 
C)  1.4 Nm 
D)  12 Nm 
E)  cannot be determined 
A)  35 Nm 
B)  0.71 Nm 
C)  1.4 Nm 
D)  12 Nm 
E)  cannot be determined

Question 9

Two carts (A's mass = 4.5 kg and B's mass = 1.5 kg) are held against a strong, compressed spring. The carts are released simultaneously, and B moves off to the right with a speed of 2.0 m/s. What is A's initial velocity?

Accepted Answer

The answer of Two carts (A's mass = 4.5 kg...

Question 10

An automobile travels due north with a speed of 93 km/h and an acceleration of 1.6 m/s2. All forces considered, the unbalanced force acting on the auto is

Accepted Answer

A)  zero. 
B)  southward. 
C)  northward. 
D)  downward. 
E)  upward. 
A)  zero. 
B)  southward. 
C)  northward. 
D)  downward. 
E)  upward.

Question 11

The buoyant force of an object is equal to the ______________ of the ______________ it displaces.

Accepted Answer

A)  mass; fluid 
B)  weight; fluid 
C)  mass; solid 
D)  weight; solid 
A)  mass; fluid 
B)  weight; fluid 
C)  mass; solid 
D)  weight; solid

Question 12

The quantity mvr is an object's

Accepted Answer

A)  inertia. 
B)  torque. 
C)  linear momentum. 
D)  angular momentum. 
A)  inertia. 
B)  torque. 
C)  linear momentum. 
D)  angular momentum.

Question 13

In keeping with Newton's second law of motion, if the force acting on a moving object is doubled, then its ______________ is doubled.

Accepted Answer

The answer of In keeping with Newton's second law of...

Question 14

A spacecraft in space keeps going at the same velocity, even without firing its rockets, in accordance with the _______________ law of motion.

Accepted Answer

A)  fourth 
B)  first 
C)  second 
D)  third 
A)  fourth 
B)  first 
C)  second 
D)  third

Question 15

To initiate motion, a(n) ____________ force is necessary.

Accepted Answer

The answer of To initiate motion, a(n) ____________ force is...

Question 16

The law of conservation of angular momentum states that the angular momentum of an object remains constant if there are no external ______________ torques acting.

Accepted Answer

The answer of The law of conservation of angular momentum...

Question 17

The angular momentum of a body is constant if the

Accepted Answer

A)  net torque is zero. 
B)  net force is constant. 
C)  net torque is constant. 
D)  net force is zero. 
A)  net torque is zero. 
B)  net force is constant. 
C)  net torque is constant. 
D)  net force is zero.

Question 18

Linear momentum has units of ______________.

Accepted Answer

The answer of Linear momentum has units of ______________....

Question 19

Mass and weight on Earth's surface

Accepted Answer

A)  are the same thing. 
B)  are defined solely by inertia. 
C)  are explained by Newton's third law. 
D)  differ in magnitude by a constant. 
E)  are explained by Kepler's second law. 
A)  are the same thing. 
B)  are defined solely by inertia. 
C)  are explained by Newton's third law. 
D)  differ in magnitude by a constant. 
E)  are explained by Kepler's second law.

Question 20

______________ principle explains why objects float or sink in a fluid.

Accepted Answer

A)  Newton's 
B)  Pascal's 
C)  Bernoulli's 
D)  Archimedes' 
A)  Newton's 
B)  Pascal's 
C)  Bernoulli's 
D)  Archimedes'

The natural tendency of an object to remain at rest or in uniform straight-line motion is called _____________.

The gravitational pull of Earth acting on an object is zero when the object

The angular momentum of a 30.0 kg object moving around a 50.0 m circle at a constant speed of 2.70 m/s is

The total linear momentum of an isolated system of masses remains the same if there are no external ______________ acting on the system.

In Newton's law of universal gravitation, F = Gm₁m₂/r² for uniform objects, the quantity r is______________.

The variables m₁ and m₂ that appear in the equation F = Gm₁m₂/r² are

A change in motion requires a(n) ____________.

If the lever arm of a 5-N force is 7 m, what is the torque acting on the object due to this force?

Two carts (A's mass = 4.5 kg and B's mass = 1.5 kg) are held against a strong, compressed spring. The carts are released simultaneously, and B moves off to the right with a speed of 2.0 m/s. What is A's initial velocity?

An automobile travels due north with a speed of 93 km/h and an acceleration of 1.6 m/s². All forces considered, the unbalanced force acting on the auto is

The buoyant force of an object is equal to the of the it displaces.

The quantity mvr is an object's

In keeping with Newton's second law of motion, if the force acting on a moving object is doubled, then its ______________ is doubled.

A spacecraft in space keeps going at the same velocity, even without firing its rockets, in accordance with the _______________ law of motion.

To initiate motion, a(n) ____________ force is necessary.

The law of conservation of angular momentum states that the angular momentum of an object remains constant if there are no external ______________ torques acting.

The angular momentum of a body is constant if the

Linear momentum has units of ______________.

Mass and weight on Earth's surface

______________ principle explains why objects float or sink in a fluid.

Temperature and Heat

Waves and Sound

Electricity and Magnetism

Atomic Physics

Nuclear Physics

The Chemical Elements

Chemical Bonding

Chemical Reactions

Organic Chemistry

Place and Time

The Solar System

Moons and Small Solar System Bodies

The Universe

The Atmosphere

Atmospheric Effects

Structural Geology and Plate Tectonics

Minerals Rocks and Volcanoes

Surface Processes

Geologic Time

Filters

Exam 3: Optics and Wave Effects

The natural tendency of an object to remain at rest or in uniform straight-line motion is called _____________.

The gravitational pull of Earth acting on an object is zero when the object

The angular momentum of a 30.0 kg object moving around a 50.0 m circle at a constant speed of 2.70 m/s is

The total linear momentum of an isolated system of masses remains the same if there are no external ______________ acting on the system.

In Newton's law of universal gravitation, F = Gm1m2/r2 for uniform objects, the quantity r is______________.

The variables m1 and m2 that appear in the equation F = Gm1m2/r2 are

A change in motion requires a(n) ____________.

If the lever arm of a 5-N force is 7 m, what is the torque acting on the object due to this force?

Two carts (A's mass = 4.5 kg and B's mass = 1.5 kg) are held against a strong, compressed spring. The carts are released simultaneously, and B moves off to the right with a speed of 2.0 m/s. What is A's initial velocity?

An automobile travels due north with a speed of 93 km/h and an acceleration of 1.6 m/s2. All forces considered, the unbalanced force acting on the auto is

The buoyant force of an object is equal to the ______________ of the ______________ it displaces.

The quantity mvr is an object's

In keeping with Newton's second law of motion, if the force acting on a moving object is doubled, then its ______________ is doubled.

A spacecraft in space keeps going at the same velocity, even without firing its rockets, in accordance with the _______________ law of motion.

To initiate motion, a(n) ____________ force is necessary.

The law of conservation of angular momentum states that the angular momentum of an object remains constant if there are no external ______________ torques acting.

The angular momentum of a body is constant if the

Linear momentum has units of ______________.

Mass and weight on Earth's surface

______________ principle explains why objects float or sink in a fluid.

Temperature and Heat

Waves and Sound

Electricity and Magnetism

Atomic Physics

Nuclear Physics

The Chemical Elements

Chemical Bonding

Chemical Reactions

Organic Chemistry

Place and Time

The Solar System

Moons and Small Solar System Bodies

The Universe

The Atmosphere

Atmospheric Effects

Structural Geology and Plate Tectonics

Minerals Rocks and Volcanoes

Surface Processes

Geologic Time

Filters

In Newton's law of universal gravitation, F = Gm₁m₂/r² for uniform objects, the quantity r is______________.

The variables m₁ and m₂ that appear in the equation F = Gm₁m₂/r² are

An automobile travels due north with a speed of 93 km/h and an acceleration of 1.6 m/s². All forces considered, the unbalanced force acting on the auto is

The buoyant force of an object is equal to the of the it displaces.