Question 1
Question
What does mechanical mean in terms of waves?
Question 2
Answer
-
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
Question 3
Question
What type of EM wave is used to see broken bones?
Question 4
Question
When light hits a shiny planar surface the path of light leaving the surface is called the...
Answer
-
reflected ray
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incident ray
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virtual image
Question 5
Question
Heat can be transferred as what kind of light?
Question 6
Question
Which type of EM wave can be used for communication on an FM or AM frequency?
Answer
-
radiowaves
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infra-red
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microwaves
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bluetooth
Question 7
Question
The process where hot particles rise, and cool particles sink is called what?
Answer
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Convection
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Conduction
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Radiation
Question 8
Question
What is conduction?
Answer
-
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
Question 9
Question
Which of these is not included in Newton's colour wheel?
Question 10
Question
Coal and oil are the only fossil fuels used for electricity.
Question 11
Question
Convection is the transfer of heat through a fluid
Question 12
Question
What three ways can heat be transferred?
Answer
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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
Question 13
Question
What is this showing?
Answer
-
Reflection
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Refraction
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Diffraction
Question 14
Question
What is unsustainable energy?
Answer
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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.
Question 15
Question
What is the unit of measuring frequency?
Answer
-
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
Question 16
Question
When a spring is stretched out, gravitational potential energy is stored in the coils.
Question 17
Question
What are the two types of diagrams used when describing energy in an appliance?
Answer
-
Sankey
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Energy transfer
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Efficiency
-
Power rating
Question 18
Question
What types of surfaces are the best emitters of radiation?
Question 19
Question
Why are metals good electrical conductors?
Question 20
Question
Gamma rays have a wavelength between 10^-12 and 10^-15 m.
Question 21
Question
What surfaces absorb each better?
Question 22
Question
What surfaces reflect heat better?
Question 23
Question
What are the three standard states of matter?
Answer
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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
Question 24
Question
What unit do we use to measure force?
Question 25
Answer
-
Hz x m
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Hz / m
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m / Hz
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m x s
-
m / s
Question 26
Question
How many volts are in the mains supply in the UK?
Question 27
Question
How do you calculate the energy required to heat up a substance?
Answer
-
E = m c θ
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E= (m c) / θ
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E = m / (c θ)
Question 28
Question
What colour is the back of a solar panel and why?
Answer
-
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.
Question 29
Question
Surfaces that are matte appear shiny when light is shone on them.
Question 30
Question
Sound travels in longitudinal waves.
Question 31
Question
A radio transmitter can send a strong signal through a hill.
Question 32
Question
Diffraction is...
Answer
-
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.
Question 33
Question
What is evaporation?
Answer
-
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.
Question 34
Question
Which of these is the right wavelength for a radio wave?
Question 35
Question
The best conductors are...
Question 36
Question
A solar eclipse happens when...
Answer
-
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
Question 37
Question
The relationship between wavelength and frequency is...
Answer
-
Directly proportional
-
Inversely proportional
Question 38
Question
What is payback time?
Answer
-
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.
Question 39
Question
There are 7 colours on Newton's colour wheel.
Question 40
Question
A new door costs £200. It saves £25 on heating bills every year. How long is the pay back time?
Question 41
Question
A Sankey diagram shows you the most wasteful appliance in a household.
Question 42
Question
The transfer of heat through a fluid is known as convection.
Question 43
Question
Radio waves have the longest wavelength and the highest frequency.
Question 44
Question
What is refraction?
Answer
-
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.
Question 45
Question
What is the job of the step down transformers in the National Grid.
Answer
-
To lower the voltage for home use.
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To bring electricity down from the overhead cables.
-
To lower the current to a safe level.
Question 46
Question
Choose the types of energy sources that are renewable.
Answer
-
Geothermal
-
Biofuels
-
Solar
-
Hydroelectric
-
Tidal
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Nuclear
-
Wood
-
Coal
-
Oil
-
Gas
Question 47
Question
Wood is a renewable energy source.
Question 48
Question
What are two features of a longitudinal wave that do not occur in a transverse wave?
Answer
-
Compression and rarefaction.
-
Compression and refraction.
-
Concession and rarefaction.
Question 49
Question
An EM wave in a vaccum with a small wave length has what kind of frequency?
Question 50
Question
What is the name of the network that connects power to the homes and businesses in the UK?
Question 51
Question
Which of these is the correct formula (units only)
Answer
-
m/s=Hz x m
-
m/s=Hz / s
-
Hz= m/s / m
Question 52
Question
Gamma waves have the highest frequency of all the EM waves.
Question 53
Question
Select the limits of human hearing.
Answer
-
20 Hz
-
20 000 Hz
-
2 000 Hz
-
200 Hz
-
2 Hz
-
200 000 Hz
Question 54
Question
What unit do we use to measure energy?
Question 55
Question
What is the correct formula for calculating efficiency?
Answer
-
(useful energy out / total energy in) x100
-
(useful energy out x 100) / total energy in
-
(total energy in / useful energy out) x 100
-
(total energy in x useful energy out) / 100
Question 56
Question
What type of energy is contained within biomass?
Question 57
Question
What does a step up transformer do?
Answer
-
Increases amps
-
Increases volts
-
Increases ohms
Question 58
Question
Particles vibrate and knock into the surrounding particles, transferring energy along. This is...
Answer
-
Conduction
-
Convection
-
Radiation
Question 59
Question
What is the frequency of the mains electricity in the UK?
Question 60
Question
What are the three types of ionising radiation in the EM spectrum?
Answer
-
Alpha
-
Beta
-
Gamma
-
Ultra violet
-
X-ray
-
Nuclear
Question 61
Question
Sound travels as a wave.
Question 62
Question
Sound waves are transverse
Question 63
Question
Sound waves are mechanical
Question 64
Question
What is the unit of measurement for frequency?
Question 65
Question
Why do objects appear smaller underwater?
Answer
-
Refraction
-
Reflection
-
Diffraction
Question 66
Question 67
Question
Why do animals in warm climates have big ears?
Answer
-
To hear predators coming from far away.
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To increase heat loss (keep cool)
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To appear taller and more intimidating
Question 68
Question
Select the ways of reducing heat loss in a home.