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P1 Revision
P1 Revision
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Revision of the whole of the OCR Gateway GCSE P1 topic.
Flashcards
25 cards
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Practice quiz
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Host live
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Questions
25
Answers
1
In thermograms, the colour __________ shows the hottest parts.
White
Green
Blue
Red
2
For total internal reflection to occur, the angle of incidence is __________ the critical angle
below
above
equal to
3
When a liquid reaches boiling point, its temperature...
increases
stays the same
decreases
4
What type of electromagnetic wave is used in TV remotes?
Visible light
Radio waves
Infrared
X-rays
5
<p>If 1000J electrical energy is used to power a TV, 700J is given off as heat and sound...</p>
300J are given off as heat
Nothing is given off as heat.
3000J are given off as heat.
6
Lasers are a form of ________________ light.
dichromatic
multicoloured
black and white
monochromatic
7
A type of photograph which shows different temperatures using a thermal imaging camera is...
heat pictures
thermogram
thermatogram
physical photograph
8
S-waves in earthquakes can travel through...
Solids only
Liquids only
Both
Neither
9
Digital signals can be cleared of...
analogue.
infrared.
states.
noise.
10
When sending radio waves around the Earth, we can reflect them off the...
Thermosphere
Stratosphere
Mesosphere
Ionosphere
11
What is the specific heat capacity of water? (in J/kg°C)
2500
4200
600
1000
12
Heat energy can be transferred by...
Radiation
Convection
Conduction
All of these answers
13
In microwave ovens we cook with microwaves, in normal oven we cook with...
X-rays
UV
gamma rays
infrared
14
Loft insulation costs £100; it saves £50 a year, what is its payback time?
9 years
8 years
4 years
2 years
15
As waves pass through a gap they spread out, this is known as...
reflection
refraction
diffraction
total internal reflection
16
Light, shiny surfaces reflect IR radiation; matt, black surfaces ________ IR radiation.
reflect
absorb
17
The specific latent heat of a liquid is 1000J/g. How much energy is needed to boil 10g of it?
5,000J
100J
1,000J
10,000J
18
Which of these will cool down quickest?
A mug of water at 900
A mug of water at 600
A window
An ice cube
19
Why is trapped air a good insulator?
<p>It prevents radiation.</p>
It is unable to convect heat.
It is unable to conduct.
20
Why do we insulate our homes?
To stop monsters
To save money
To stop mice getting in
To add value to the house
21
True or false? Sound waves are found on the electromagnetic spectrum.
False
True
22
When a liquid changes state into a gas, this is known as...
<p>evaporating</p>
condensing
freezing
melting
23
What do we measure energy in?
J
Hz
K
kg
24
The types of waves caused by an earthquake are known as...
<p>D-waves and Z-waves.</p>
P-waves and D-waves
P-waves and S-waves
D-waves and S-waves
25
The image shown below is an example of a...
Sankey diagram.
Einstein picture.
Pasteur drawing.
Mendeleev image.
