Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Grade 11 Physics > Unit 3: Energy and Society > Flashcards

Unit 3: Energy and Society Flashcards

(79 cards)

Start Studying
1
Q

mechanical work

A

applying a force on an object that displaces the object in the direction of the force or a component of the force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

energy

A

the capacity to do work

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

kinetic energy

A

energy possessed by moving objects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

work energy principle

A

the net amount of mechanical work done on an object equals the object change in kinetic energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

potential energy

A

a form of energy an object possesses because of its position in relation to forces in its environment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

gravitational potential energy

A

energy possessed by an object due t its position relative to the surface of Earth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

reference level

A

a designated level to which objects may fall, considered to have a gravitational potential energy value of OJ

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

mechanical energy

A

the sum of kinetic energy and gravitational potential energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

thermal energy

A

the total quantity of kinetics and potential energy possessed by the atoms or molecules of a substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

nuclear energy

A

potential energy of protons and neutrons in atomic nuclei

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

energy transformation

A

the change of one type of energy into another

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

law of conservative of energy

A

energy is neither created or destroyed, when energy is transformed from one form into another, no energy is lost

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

power

A

the rate of transforming or doing work

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

kinetic molecular theory

A

the theory that describes the motion of molecules or atoms in substance in terms of kinetic energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

thermal energy

A

the total quantity of kinetic and potential energy possessed by the atoms or molecule of a substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

temperature

A

a measure of the average kinetic energy of the particles in a substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Celsius Scale

A

the temperature scale based on the boiling point and freezing point of water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Fahrenheit Scale

A

the temperature scale based on the boiling point and freezing point of brine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

melting point

A

the temperature at which a solid changes into a liquid: equal to the freezing point for a given substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

freezing point

A

the temperature at which a liquid changes into a solid; equal to the melting point for a given substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

boiling point

A

the temperature at which a liquid changes into a gas; equal to the condensation point for given a substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

condensation point

A

the temperature at which a gas changes into liquid: equals to the boiling point for a given substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

heat

A

the transfer of thermal energy from a substance with a higher temperature to a substance with a lower temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

thermal conduction

A

the transfer of thermal energy that occurs when warmer objects are in physical contact with colder objects

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
convection
the transfer of thermal energy through a fluid that occurs when colder denser fluid falls and pushes up. warmer, less dense fluid
26
convection current
current that occurs when a fluid is continuously heated; caused by warmer, less dense fluid being constantly pushed upward as colder, denser fluid
27
radiation
the movement of thermal energy as electromagnetic waves
28
thermal conduction
a material that is a good conductor of thermal energy
29
thermal insulator
a material that is a poor conductor of thermal energy
30
specific heat capacity
the amount of energy, in joules, required to increase the temperature of 1 kg of a substance by 1c*
31
quantity of heat
the amount of thermal energy transferred from one object to another
32
principle of thermal energy exchange
when thermal energy is transferred from a warmer object to a colder object, the amount of thermal energy released by the warmer object is equal to the amount of thermal energy absorbed by the colder object
33
thermal expansion
the expansion of a substance as it warms up
34
thermal contraction
the contraction of a substance when it cools down
35
fusion
the process by which a solid changes to a lid
36
heating graph
a graph that shows the temperature changes that occur while thermal energy is absorbed by a substance
37
cooling graph
a graph that shows the temperature changes that occurs while thermal energy is being removed from a substance
38
latent heat
the total thermal energy absorbed or released when a substance when a changes state; measured in jules
39
latent heat of fusion
the amount of thermal energy required to change a solid into a liquid into a solid
40
latent heat of vaporization
the amount of thermal energy required to change a liquid into a gas or a gas into liquid
41
specific latent heat
the amount of thermal energy required for 1 kg of a substance to change from one state into another; measured in joules per kilograms (J/kg)
42
specific latent heat of fusion
the amount of thermal energy required to melt or freeze 1 kg of a substance. measured in joules per kilogram (J/kg)
43
specific latent heat of vaporization
the amount of thermal energy required to evaporate or condense 1 kg of a substance. measured in joules per kilogram (J/kg)
44
electrical heating system
a system that uses electricity to produce thermal energy for heating
45
forced air heating system
a system that uses hot water to heat a building
46
geothermal system
a system that transfers thermal energy from under Earth's Surface into a building to heat it, and transfers thermal energy from the building into the ground to cool the building
47
proton
a positively charged particle in the nucleus of an Atom
48
neutron
an uncharged particle in the nucleus of an Atom
49
Nucleons
particles in the Nucleus of an Atom, aka the Protons and the Neutrons
50
electrons
a negatively charged particle found in the space surrounding the nucleus of the Atom
51
Ground State
state in which all electrons are at their lowest possible energy level
52
excited state
a state in which 1 or more electrons are higher energy levels than in the ground stage
53
atomic number
the number of protons in the nucleus
54
mass number
the number of protons and neutrons in the nucleus
55
isotope
a form of an element that has the same atomic number, but a different mas number than all other forms of that element
56
radioisotope
an unstable isotope that spontaneously changes its nuclear structure and releases energy in the form of Radiation
57
radiation
energy released when the nucleus of an unstable isotope undergoes a change in structure
58
radioactivity
a process which the nucleus of an atom spontaneously disintegrates
59
nuclear fission
the decomposition of large, unstable nuclei into smaller, more stable nuclei
60
nuclear reaction
the process by which the nucleus of an atom sometimes changes
61
electrostatic forces
the force of attraction or repulsion due to electric changes
62
Strong Nuclear Force
the very strong force of attraction between Nucleus
63
Radioactive decay
the process by which a radioactive atom's nucleus breaks apart and forms different atoms
64
Alpha Decay
nuclear reaction in which an alpha particle is emitted
65
alpha particle
a particle emitted during alpha decay; composed of a helium nucleus containing 2 neutrons
66
parent atom
the reactant atom in nuclear reaction
67
daughter atom
the product atom in a nuclear
68
transmutation
a nuclear decay process in which daughter atoms are different elements from parents atoms
69
beta decay
nuclear reaction in which a beat particle is emitted or captured
70
beta particles
a high energy electron or positron ejected or captured by a nucleus during beta decay
71
positron
a particle with a positive charge and the same mass as an electron
72
photon
a high energy particles with no mass
73
gamma decay
a reaction in which an excited nucleus returns to a lower, more stable energy state, releasing a very high energy gamma ray in the process
74
half life
the average length of time it takes radioactive material to decay to half its original mass
75
mass defect
the difference between the calculated mass of an atom, based on the nucleus and electrons present and the actual atomic mass
76
binding energy
the energy used to hold a nucleus together
77
mega electron volt
the energy required to accelerate an electron through a potential difference of 1 million volts
78
Chain Reaction
the repeated series of reactions in which the products of one reaction generates subsequent reactions
79
nuclear fusion
a nuclear reaction in which the nuclei of 2 atoms fuse together to form a larger nucleus

Grade 11 Physics (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions