Physics Crossword

?
When a wave source is moving away from an observer and the observed wavelength increases and the frequency decreases
Doppler effect
1 of 91
Evidence for the Big Bang
Red shift
2 of 91
Allows humans to classify stars correctly and compare them
Herzsprung-Russel diagram
3 of 91
Colour of a class A star?
white
4 of 91
The last stage in stellar evolution of a star with a similar mass to the sun
Black Dwarf
5 of 91
A satellite that is used for communication and orbits the equator
Geostationary
6 of 91
Causes satellites to orbit planets
Gravitational force
7 of 91
The shape of a planetary orbit
Ellipse
8 of 91
Affects gravitational field strength
Density
9 of 91
A large collection of billions of stars
Galaxy
10 of 91
A rule used to check the direction of the force, the current, and the magnetic field
Flemings left hand
11 of 91
Shown by the fingers in the right hand rule
Magnetic field line
12 of 91
To strengthen a magnet you increase the
current
13 of 91
Creates a magnetic field when electric current is run through it
Conductor
14 of 91
Used to find the direction of a magnetic field
Plotting Compass
15 of 91
When removed from a magnetic field magnetism is lost quickly
Magnetically soft
16 of 91
Like poles are brought together
repel
17 of 91
A universal measurement of temperature
Kelvin
18 of 91
Temperature in Kelvin is proportional to
kinetic energy
19 of 91
Gas molecules move faster when the temperature is
increased
20 of 91
-273 degrees Celcius is also known as
Absolute zero
21 of 91
Gas molecules have a random
Motion
22 of 91
The amount of energy required to raise the temperature of a substance by 1 degrees Celcius
Specific heat capacity
23 of 91
On a temperature-time graph a flat section shows a
Change of state
24 of 91
Has a regular pattern of particles that vibrate
Solid
25 of 91
Measures pressure
Pascals
26 of 91
Force divided by area
Pressure
27 of 91
Fossil fuels turn chemical energy into
thermal
28 of 91
Reneweable, easy to manage and attach method of creating electrical energy
Solar
29 of 91
The rate of transfer of energy
Power
30 of 91
1/2 x mass x velocity squared
Kinetic Energy
31 of 91
Stops unwanted energy transfers
Insulation
32 of 91
Energy transfer by heating in liquids and gases, where more energetic particles diffuse
Convection
33 of 91
Energy transfered by heating solids
Conduction
34 of 91
Energy transfered by infrared waves
Radiation
35 of 91
Diagram linking useful and wasted energy
Sankey
36 of 91
Energy store that releases energy by chemical reactions
Chemical
37 of 91
Energy store where two charges attract or repel each other
Electrostatic
38 of 91
Gamma Rays cause
Cancer
39 of 91
Harmful to eyes and causes sunburn
Ultraviolet
40 of 91
Used for observing internal structures of objects
Xrays
41 of 91
Infrared Radiation is used for
night vision
42 of 91
Emit the longest wavelength and lowest frequency
radio
43 of 91
Light waves all travel the same
speed
44 of 91
The louder the sound the greater the
amplitude
45 of 91
Is higher the more something vibrates
pitch
46 of 91
Displays sound energy as electric signals
Oscilloscope
47 of 91
Hearing range between 20 and 20 000 Hertz
Human
48 of 91
Sound waves are
longitudinal
49 of 91
The bending of light when it enters a different medium
Refraction
50 of 91
Used by doctors to see different parts of the body
optical fibres
51 of 91
The angle of incidence at which the angle of refraction is 90 degrees
Critical angle
52 of 91
1/ sin c
refractive index
53 of 91
When all light is reflected back into the more optically dense medium
total internal reflection
54 of 91
Sin r times refractive index
sin i
55 of 91
Line drawn perpendicular to the reflective surface where the incidence ray hits it
normal
56 of 91
Light waves are
transverse
57 of 91
An imaginary surface joining all peaks of a wave
wavefront
58 of 91
The length of time it takes for one complete waves
Timeperiod
59 of 91
It uses negatively charged ink and positively charged parts of paper
Photocopier
60 of 91
One Joule per Coulomb
Volt
61 of 91
Measures resistance
Ohms
62 of 91
Shared equally between components equally in series circuit
volts
63 of 91
If a component breaks it keeps flowing through others in a parallel circuit
Current
64 of 91
Has multiple pathways for the current to flow through
Parallel
65 of 91
Units for current x time
Coulomb
66 of 91
Rate of flow of charge carried by electrons
Electric current
67 of 91
Increases resistance at low light intensity
LDR
68 of 91
Device that convert ac current to dc
diode
69 of 91
Current through a conductor is directly proportional to potential difference across it (if temperature is constant)
Ohms law
70 of 91
230 volts
Mains
71 of 91
Reusable fuse
Circuit braker
72 of 91
Has a plastic casing with no wires connect
Double insulation
73 of 91
Melts when too much current flows through it breaking the circuit
Fuse
74 of 91
Brown wire in plug
Live
75 of 91
Extension is directly proportional to applied force (if object does exceed limit of proportionality)
Hookes law
76 of 91
When it wont return to original length it reaches the limit of
proportionality
77 of 91
Used in cars and reduces forces acting on chest
Seat belt
78 of 91
Newton said For every action there is an equal and opposite reaction
third
79 of 91
When air resistance is equal to weight
Terminal Velocity
80 of 91
Is not lost unless in an open system
Momentum
81 of 91
Area under the line in a velocity-time graph
Distance
82 of 91
Equals rise over run in a velocity-time graph
acceleration
83 of 91
Equals force times perpendicular distance from the pivot
Moment
84 of 91
Affects the driver's thinking distance
Tiredness
85 of 91
Affects the driver's braking distance
Weather
86 of 91
A force that opposes motion
Friction
87 of 91
Quantity that has both magnitude and direction
vector
88 of 91
Has balanced forces acting on it so it
Stationary
89 of 91
Equals the gradient in a distance-time graph
Speed
90 of 91
initial speed squared plus 2 x acceleration x distance moved
final speed squared
91 of 91

Other cards in this set

Card 2

Front

Evidence for the Big Bang

Back

Red shift

Card 3

Front

Allows humans to classify stars correctly and compare them

Back

Preview of the front of card 3

Card 4

Front

Colour of a class A star?

Back

Preview of the front of card 4

Card 5

Front

The last stage in stellar evolution of a star with a similar mass to the sun

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Electricity resources »