Transcript Energy Vocabulary.ppt

diagram
1
a plan, sketch, drawing, or outline
made to show how something works
or to show the way parts are put
together
2
force
3
a push or a pull that causes an object
to move, stop, or change direction
4
gravity
5
the force that pulls all things in the
universe toward each other; the force
that pulls things down on Earth
6
magnetism
7
a force that pulls iron or steel across a
distance; a force that attracts or repels
magnetic material
8
friction
9
a force that resists motion when
objects rub against each other
10
motion
11
a change in the position
of an object
12
Simple machine
13
a device with few or no moving parts
that changes the size or direction of a
force
14
energy
15
the ability to make a change in
matter
16
electricity
17
energy that flows through a circuit
and can create light, heat,
magnetism, sound, or other effects
18
Electric circuit
19
a closed path where electricity can
flow
20
electromagnet
21
a temporary magnet created when
electricity passes through wire
wrapped around an iron bar
22
Thermal energy
23
heat energy caused by the movement
of molecules in an object
24
conduction
25
the direct transfer of heat between
objects that touch
26
convection
27
heat moving from one object to
another caused by mixing a liquid or a
gas
28
radiation
29
the movement of thermal (heat)
energy by electromagnetic waves,
such as light waves from the sun
30
Sound energy
31
a change in matter made by
vibrating objects
32
vibrate
33
to move back and forth
34
pitch
35
how high or low a sound is
Volume
(in relation to sound)
37
the loudness or amount of a sound
38
conductor
39
a material that allows energy to
flow through it easily
40
Insulator
41
a material that does not allow
energy to flow through it easily
42
Light energy
43
a form of energy that travels in
waves and can be seen with our
eyes
44
reflect
45
when light rays bounce off an
object
46
refract
47
when light rays bend
48
absorb
49
to take in and hold inside
50
Fossil fuels
51
materials formed from decayed
remains of ancient plants and
animals that are burned to produce
heat; coal, oil, and natural gas
52
Solar energy
53
energy from sunlight
54
Mechanical
energy
55
energy of motion
56
Potential
energy
57
energy that is stored in a material
because of its position or condition
58
Kinetic energy
59
energy of a material in motion
60