Chapter 9 Energy

Question 1

Energy that depends on the position of an object or on the positions of an object’s constituent parts.

Answer 1

Potential Energy

Question 2

The form of energy associated with motion. The kinetic energy of an object in motion is given by KE =1/2mass x speed2.

Answer 2

Kinetic Energy

Question 3

A name given to the kinetic or potential energy of large, macroscopic objects.

Answer 3

Mechanical Energy

Question 4

Energy hidden with in matter, manifest in temperature, burning or explosion.

Answer 4

Internal Energy

Question 5

Energy stored in an object, with the potential to fall.

Answer 5

Gravitational Potential Energy

Question 6

Energy = 1/2 mass x speed2

Answer 6

Kinetic energy at low speed.

Question 7

energy = weight x height

Answer 7

Gravitational potential energy formula

Question 8

Energy transferred to or from an object

Answer 8

Work

Question 9

Total kinetic energy of random motion in material.

Answer 9

Thermal energy

Question 10

Perpetual motion machine that keeps moving forever with no energy added.

Answer 10

Perpetual Motion Machine

Question 11

Transmission of electrical charge or heat through a conduction medium with out motion

Answer 11

Conduction

Question 12

Energy is moved by being stored in matter as internal energy, them moving matter from one place to another.

Answer 12

Convection

Question 13

Energy is moved in the form of light or x-rays, gamma rays, microwaves…

Answer 13

Radiation

Question 14

Energy associated with physical and chemical states of matter. Example: car battery

Answer 14

Chemical potential energy

Question 15

Internal energy associated with stretching or compressing material.

Answer 15

Elastic potential energy

Question 16

Energy stored in the nucleus of an atom.

Answer 16

Nuclear potential energy

Question 17

Depends on an object’s position.

Answer 17

potential energy

Question 18

Depends on the position and motion of the object on the atomic scale.

Answer 18

internal energy

Question 19

Weight times height.

Answer 19

gravitational potential energy

Question 20

Depends on the position and motion of the whole object

Answer 20

mechanical energy

Question 21

Moving an object in the direction of an applied force.

Answer 21

work

Question 22

Something that keeps moving forever without any energy being added.

Answer 22

perpetual motion machine

Question 23

Depends on an object’s motion.

Answer 23

kinetic energy

Question 24

Energy moves through direct contact.

Answer 24

conduction

Question 25

Heat is transferred when the hot material moves around.

Answer 25

convection

Question 26

Direct transfer of heat form one place to another without any need for intervening matter.

Answer 26

radiation

Question 27

Energy associated with chemical bonds.

Answer 27

chemical potential energy

Question 28

Depends on the position of atoms and molecules .

Answer 28

elastic potential energy

Question 29

Depends on the position of protons and neutrons in the nucleus.

Answer 29

nuclear potential energy

Question 30

Speed plays a more significant role than mass in determining an object's kinetic energy.

Answer 30

true

Question 31

Gravitational potential energy decreases as the distance between two objects increases.

Answer 31

false

Question 32

If an object remains stationary then no work is being done on it.

Answer 32

true

Question 33

In the process of conduction, both matter and energy are exchanged.

Answer 33

false

Question 34

The closer the protons and neutrons are to each other, the lower the nuclear potential energy.

Answer 34

true

Question 35

Mass and energy are really two ways of measuring the same thing.

Answer 35

true

Question 36

The heat you feel on your face from a campfire when the surrounding air is cold is an example of radiation.

Answer 36

true

Question 37

Energy can be defined as

Answer 37

both of the above

Question 38

If you move two positively charged objects closer together, then electrical potential energy

Answer 38

increases

Question 39

Two objects with opposite charges are brought closer together. Electrical potential energy

Answer 39

decreases

Question 40

As you dribble a basketball, which of the following quantities is/are conserved?

Answer 40

total energy

Question 41

If an object has kinetic energy, then it must be

Answer 41

moving

Question 42

Work is always done on an object when

Answer 42

a force acts on an object which is moving in the direction of the force

Question 43

As you are skiing downhill, which of the following must be true?

Answer 43

Your gravitational potential energy decreases

Question 44

"Pair production" demonstrates which of the following?

Answer 44

Conservation of mass-energy.