Question 1

The value of an object's gravitational potential energy depends on the ______________.

Accepted Answer

The answer of The value of an object's gravitational potential...

Question 2

Which of the following four objects has the least kinetic energy?

Accepted Answer

A)  An object of mass m moving with speed 4v 
B)  An object of mass 3m moving with speed 2v 
C)  An object of mass 4m moving with speed v 
D)  An object of mass 2m moving with speed 3v 
E)  None of these; all four objects have the same kinetic energy. 
A)  An object of mass m moving with speed 4v 
B)  An object of mass 3m moving with speed 2v 
C)  An object of mass 4m moving with speed v 
D)  An object of mass 2m moving with speed 3v 
E)  None of these; all four objects have the same kinetic energy.

Question 3

Which of the following is a unit of energy?

Accepted Answer

A)  kilowatt-hour 
B)  newton 
C)  joules per second 
D)  newton-second 
E)  none of these 
A)  kilowatt-hour 
B)  newton 
C)  joules per second 
D)  newton-second 
E)  none of these

Question 4

Which of the following is(are)drawbacks to the use of methane hydrate as a fuel?

Accepted Answer

A)  When melted, it produces methane, a greenhouse gas. 
B)  It is difficult to mine as a solid located at the bottom of the oceans. 
C)  It is mixed with water. 
D)  All of these are drawbacks associated with methane hydrate. 
A)  When melted, it produces methane, a greenhouse gas. 
B)  It is difficult to mine as a solid located at the bottom of the oceans. 
C)  It is mixed with water. 
D)  All of these are drawbacks associated with methane hydrate.

Question 5

The average adult radiates heat energy at the same rate as

Accepted Answer

A)  a 10-W light bulb. 
B)  a 100-kW light bulb. 
C)  a 100-W light bulb. 
D)  none of these. 
A)  a 10-W light bulb. 
B)  a 100-kW light bulb. 
C)  a 100-W light bulb. 
D)  none of these.

Question 6

The quantity $\frac { 1 } { 2 } m v ^ { 2 }$ is known as

Accepted Answer

A)  kinetic energy. 
B)  potential energy. 
C)  work. 
D)  energy. 
E)  power. 
A)  kinetic energy. 
B)  potential energy. 
C)  work. 
D)  energy. 
E)  power.

Question 7

The sum of the kinetic energy and potential energy is called ______________ energy.

Accepted Answer

The answer of The sum of the kinetic energy and...

Question 8

One watt is equal to ______________ per second.

Accepted Answer

A)  one kilogram 
B)  one newton 
C)  one joule 
D)  one meter 
A)  one kilogram 
B)  one newton 
C)  one joule 
D)  one meter

Question 9

The kinetic energy of a pendulum is ______________ at the bottom of its swing.

Accepted Answer

maximum (o

Question 10

We define the total mechanical energy of an object as

Accepted Answer

A)  potential energy plus kinetic energy. 
B)  inertial energy plus kinetic energy. 
C)  gravitational energy plus potential energy. 
D)  mental energy plus physical energy. 
A)  potential energy plus kinetic energy. 
B)  inertial energy plus kinetic energy. 
C)  gravitational energy plus potential energy. 
D)  mental energy plus physical energy.

Question 11

The product of force times parallel distance is called ______________.

Accepted Answer

The answer of The product of force times parallel distance...

Question 12

Mechanical energy

Accepted Answer

A)  is the automobile energy. 
B)  is the sum of kinetic and potential energies. 
C)  is the kinetic energy. 
D)  is the potential energy. 
A)  is the automobile energy. 
B)  is the sum of kinetic and potential energies. 
C)  is the kinetic energy. 
D)  is the potential energy.

Question 13

The potential energy of a pendulum is greatest

Accepted Answer

A)  when its potential energy is least. 
B)  at the top of its swing. 
C)  at the bottom of its swing. 
D)  when its total energy is greatest. 
A)  when its potential energy is least. 
B)  at the top of its swing. 
C)  at the bottom of its swing. 
D)  when its total energy is greatest.

Question 14

The energy of a system

Accepted Answer

A)  always increases. 
B)  always remains constant. 
C)  increases when work is done by the system. 
D)  increases when work is done on the system. 
A)  always increases. 
B)  always remains constant. 
C)  increases when work is done by the system. 
D)  increases when work is done on the system.

Question 15

Work is defined as force times

Accepted Answer

A)  distance. 
B)  time. 
C)  parallel distance. 
D)  perpendicular distance. 
A)  distance. 
B)  time. 
C)  parallel distance. 
D)  perpendicular distance.

Question 16

A joule per second (J/s)is a

Accepted Answer

A)  Watt. 
B)  Newton. 
C)  Kilogram. 
D)  Second. 
A)  Watt. 
B)  Newton. 
C)  Kilogram. 
D)  Second.

Question 17

Kinetic and potential energies are forms of ______________ energy.

Accepted Answer

The answer of Kinetic and potential energies are forms of...

Question 18

A horsepower is a unit of power equal to 550 ______________.

Accepted Answer

The answer of A horsepower is a unit of power...

Question 19

The kinetic energy of a pendulum is greatest

Accepted Answer

A)  when its potential energy is greatest. 
B)  at the top of its swing. 
C)  at the bottom of its swing. 
D)  when its total energy is greatest. 
A)  when its potential energy is greatest. 
B)  at the top of its swing. 
C)  at the bottom of its swing. 
D)  when its total energy is greatest.

Question 20

The kinetic energy of a pendulum is least

Accepted Answer

A)  when its potential energy is least. 
B)  at the top of its swing. 
C)  at the bottom of its swing. 
D)  when its total energy is greatest. 
A)  when its potential energy is least. 
B)  at the top of its swing. 
C)  at the bottom of its swing. 
D)  when its total energy is greatest.

Exam 4: Work and Energy

The value of an object's gravitational potential energy depends on the ______________.

Which of the following four objects has the least kinetic energy?

Which of the following is a unit of energy?

Which of the following is(are)drawbacks to the use of methane hydrate as a fuel?

The average adult radiates heat energy at the same rate as

The quantity 12mv2\frac { 1 } { 2 } m v ^ { 2 }21​mv2 is known as

The sum of the kinetic energy and potential energy is called ______________ energy.

One watt is equal to ______________ per second.

The kinetic energy of a pendulum is ______________ at the bottom of its swing.

We define the total mechanical energy of an object as

The product of force times parallel distance is called ______________.

Mechanical energy

The potential energy of a pendulum is greatest

The energy of a system

Work is defined as force times

A joule per second (J/s)is a

Kinetic and potential energies are forms of ______________ energy.

A horsepower is a unit of power equal to 550 ______________.

The kinetic energy of a pendulum is greatest

The kinetic energy of a pendulum is least

Measurement

Motion

Force and Motion

Temperature and Heat

Waves and Sound

Optics and Wave Effects

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 G Eology and P Late Tectonics

Minerals, rocks, and Volcanoes

Surface Processes

Geologic Time

Filters

The quantity $\frac { 1 } { 2 } m v ^ { 2 }$ is known as