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Quiz von I M Wilson, aktualisiert more than 1 year ago
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Erstellt von I M Wilson
vor mehr als 9 Jahre
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Frage 1
Frage
What does mechanical mean in terms of waves?
Antworten
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Requires a substance to travel e.g. air particles
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Produced by a machine
Frage 2
Frage
Waves can be...
Antworten
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Reflected, refracted and diffracted
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Reflected, diffused and compressed
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Diffracted, reacted, and rarefacted
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Bent, Bounced and Spread out
Frage 3
Frage
What type of EM wave is used to see broken bones?
Antworten
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X-rays
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Visible
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UV rays
Frage 4
Frage
When light hits a shiny planar surface the path of light leaving the surface is called the...
Antworten
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reflected ray
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incident ray
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virtual image
Frage 5
Frage
Heat can be transferred as what kind of light?
Antworten
-
Infra-red
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Microwave
Frage 6
Frage
Which type of EM wave can be used for communication on an FM or AM frequency?
Antworten
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radiowaves
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infra-red
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microwaves
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bluetooth
Frage 7
Frage
The process where hot particles rise, and cool particles sink is called what?
Antworten
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Convection
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Conduction
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Radiation
Frage 8
Frage
What is conduction?
Antworten
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The transfer of energy through a solid substance
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The way an orchestra is led
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The transfer of electricity through a wire
Frage 9
Frage
Which of these is not included in Newton's colour wheel?
Antworten
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Pink
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Orange
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Red
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Blue
Frage 10
Frage
Coal and oil are the only fossil fuels used for electricity.
Antworten
- True
- False
Frage 11
Frage
Convection is the transfer of heat through a fluid
Antworten
- True
- False
Frage 12
Frage
What three ways can heat be transferred?
Antworten
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Radiation
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Convection
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Conduction
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Evporation
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Titration
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Distillation
Frage 13
Antworten
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Reflection
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Refraction
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Diffraction
Frage 14
Frage
What is unsustainable energy?
Antworten
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Very inefficient energy.
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An energy source that will run out.
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An energy source that doesn't last very long.
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When too much energy is used.
Frage 15
Frage
What is the unit of measuring frequency?
Antworten
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Hertz
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Hurts
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Amps
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Voltz
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Volts
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Newtons
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Decibels
Frage 16
Frage
When a spring is stretched out, gravitational potential energy is stored in the coils.
Antworten
- True
- False
Frage 17
Frage
What are the two types of diagrams used when describing energy in an appliance?
Antworten
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Sankey
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Energy transfer
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Efficiency
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Power rating
Frage 18
Frage
What types of surfaces are the best emitters of radiation?
Antworten
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Black
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White
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Shiny
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Matte
Frage 19
Frage
Why are metals good electrical conductors?
Antworten
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Because they are solids.
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Because they have free electrons.
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Because they have free ions.
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Because they are dense.
Frage 20
Frage
Gamma rays have a wavelength between 10^-12 and 10^-15 m.
Antworten
- True
- False
Frage 21
Frage
What surfaces absorb each better?
Antworten
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Black
-
Matte
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White
-
Shiny
Frage 22
Frage
What surfaces reflect heat better?
Antworten
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White
-
Shiny
-
Black
-
Matte
Frage 23
Frage
What are the three standard states of matter?
Antworten
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Solid
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Liquid
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Gas
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Plasma
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Fluid
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Metal
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Non-metal
Frage 24
Frage
What unit do we use to measure force?
Antworten
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N
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N/kg
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kg
Frage 25
Frage
Wavespeed=
Antworten
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Hz x m
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Hz / m
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m / Hz
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m x s
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m / s
Frage 26
Frage
How many volts are in the mains supply in the UK?
Antworten
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230V
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240V
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220V
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250V
Frage 27
Frage
How do you calculate the energy required to heat up a substance?
Antworten
-
E = m c θ
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E= (m c) / θ
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E = m / (c θ)
Frage 28
Frage
What colour is the back of a solar panel and why?
Antworten
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Black, because it absorbs heat.
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Black, because it emits heat.
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Shiny silver, because it reflects the heat back in.
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Copper, because copper is a good conductor of heat.
Frage 29
Frage
Surfaces that are matte appear shiny when light is shone on them.
Antworten
- True
- False
Frage 30
Frage
Sound travels in longitudinal waves.
Antworten
- True
- False
Frage 31
Frage
A radio transmitter can send a strong signal through a hill.
Antworten
- True
- False
Frage 32
Frage
Diffraction is...
Antworten
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when waves pass through a gap and spread out.
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when waves pass through a gap and change direction.
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when waves meet a gap and are reflected back instead of passing through.
Frage 33
Frage
What is evaporation?
Antworten
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The process of a liquid becoming a gas.
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The process of a solid turning straight into a gas (missing out the liquid phase).
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When a gas becomes a liquid.
Frage 34
Frage
Which of these is the right wavelength for a radio wave?
Antworten
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1m
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0.0001m
Frage 35
Frage
The best conductors are...
Antworten
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dense solid substances.
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solid metals.
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most metals and some solutions.
Frage 36
Frage
A solar eclipse happens when...
Antworten
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the Earth passes between the Sun and the Moon.
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the Moon passes between the Sun and the Earth
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the Sun passes between the Moon and the Earth
Frage 37
Frage
The relationship between wavelength and frequency is...
Antworten
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Directly proportional
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Inversely proportional
Frage 38
Frage
What is payback time?
Antworten
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The amount of time needed to earn back the cost of an object from how much it saves per year.
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The amount of time that an energy saving installation is effective for.
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The amount of time a power station needs to run for to meet the demand of the National Grid.
Frage 39
Frage
There are 7 colours on Newton's colour wheel.
Antworten
- True
- False
Frage 40
Frage
A new door costs £200. It saves £25 on heating bills every year. How long is the pay back time?
Antworten
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8 years
-
4 years
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10 years
Frage 41
Frage
A Sankey diagram shows you the most wasteful appliance in a household.
Antworten
- True
- False
Frage 42
Frage
The transfer of heat through a fluid is known as convection.
Antworten
- True
- False
Frage 43
Frage
Radio waves have the longest wavelength and the highest frequency.
Antworten
- True
- False
Frage 44
Frage
What is refraction?
Antworten
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When a wave bounces off a surface and some is absorbed.
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When a wave spreads out through a gap.
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When a wave enters a different density and changes direction.
Frage 45
Frage
What is the job of the step down transformers in the National Grid.
Antworten
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To lower the voltage for home use.
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To bring electricity down from the overhead cables.
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To lower the current to a safe level.
Frage 46
Frage
Choose the types of energy sources that are renewable.
Antworten
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Geothermal
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Biofuels
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Solar
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Hydroelectric
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Tidal
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Nuclear
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Wood
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Coal
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Oil
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Gas
Frage 47
Frage
Wood is a renewable energy source.
Antworten
- True
- False
Frage 48
Frage
What are two features of a longitudinal wave that do not occur in a transverse wave?
Antworten
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Compression and rarefaction.
-
Compression and refraction.
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Concession and rarefaction.
Frage 49
Frage
An EM wave in a vaccum with a small wave length has what kind of frequency?
Antworten
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High
-
Low
Frage 50
Frage
What is the name of the network that connects power to the homes and businesses in the UK?
Antworten
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National Rail
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British gas
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National Grid
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British Power
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National board of Electric and Power
Frage 51
Frage
Which of these is the correct formula (units only)
Antworten
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m/s=Hz x m
-
m/s=Hz / s
-
Hz= m/s / m
Frage 52
Frage
Gamma waves have the highest frequency of all the EM waves.
Antworten
- True
- False
Frage 53
Frage
Select the limits of human hearing.
Antworten
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20 Hz
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20 000 Hz
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2 000 Hz
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200 Hz
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2 Hz
-
200 000 Hz
Frage 54
Frage
What unit do we use to measure energy?
Antworten
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J
-
N
-
W
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Cal
-
K
Frage 55
Frage
What is the correct formula for calculating efficiency?
Antworten
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(useful energy out / total energy in) x100
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(useful energy out x 100) / total energy in
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(total energy in / useful energy out) x 100
-
(total energy in x useful energy out) / 100
Frage 56
Frage
What type of energy is contained within biomass?
Antworten
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Nuclear
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Chemical
-
Thermal
Frage 57
Frage
What does a step up transformer do?
Antworten
-
Increases amps
-
Increases volts
-
Increases ohms
Frage 58
Frage
Particles vibrate and knock into the surrounding particles, transferring energy along. This is...
Antworten
-
Conduction
-
Convection
-
Radiation
Frage 59
Frage
What is the frequency of the mains electricity in the UK?
Antworten
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50Hz
-
5Hz
-
500Hz
-
5000Hz
Frage 60
Frage
What are the three types of ionising radiation in the EM spectrum?
Antworten
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Alpha
-
Beta
-
Gamma
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Ultra violet
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X-ray
-
Nuclear
Frage 61
Frage
Sound travels as a wave.
Antworten
- True
- False
Frage 62
Frage
Sound waves are transverse
Antworten
- True
- False
Frage 63
Frage
Sound waves are mechanical
Antworten
- True
- False
Frage 64
Frage
What is the unit of measurement for frequency?
Antworten
-
Hz
-
db
-
m/s
-
kW
Frage 65
Frage
Why do objects appear smaller underwater?
Antworten
-
Refraction
-
Reflection
-
Diffraction
Frage 66
Frage
P x t =
Antworten
-
E
-
N
-
Q
-
V
Frage 67
Frage
Why do animals in warm climates have big ears?
Antworten
-
To hear predators coming from far away.
-
To increase heat loss (keep cool)
-
To appear taller and more intimidating
Frage 68
Frage
Select the ways of reducing heat loss in a home.
Antworten
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loft insulation
-
cavity wall insulation
-
water softeners/descalers
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solar panels
-
double glazing
-
thermostats
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