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P1 GCSE EdExcel Practice Flashcards | StudBud
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P1 GCSE EdExcel Practice
P1 GCSE EdExcel Practice
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#GCSE #EdExcel #P1 #Physics #ElectromagneticSpectrum #Exam
Flashcards
12 cards
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Practice quiz
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Questions
12
Answers
1
What happens to a star like our Sun after it runs out of hydrogen for fusion?
Red giant --> Supernovae --> Black hole
Red giant --> Black giant (no supernova)
Red giant --> White dwarf --> Black dwarf (no supernova)
Red giant --> Supernovae --> Neutron star
2
Hubble discovered that...
That there is blue light coming from distant galaxies
That the Sun is the centre of the solar system
Light from distant galaxies is red-shifted
Distance galaxies are moving away from us
3
A TV coverts 250 J of electrical energy into 50 J of wasted heat energy. How efficient is it?
20%
80%
75%
50%
4
Where is NOT a great place to place a telescope?
Up a mountain
In space
On the outskirts of a city
In very dry stable conditions
5
A flow of electrons (charge) is called...
a current
a voltage
a battery
a potential difference
6
Advantage of a reflecting telescope over a refracting telescope
Easier to make bigger!
Doesn't require a mirror
Can magnify tiny objects like a microscope
They can be put on mountains
7
Which of these has the highest frequency and energy?
Ultra Violet light
Red light
X-rays
Infrared light
8
This shows the two categories of waves. But which one is the longitudinal wave?
Bottom
Top
9
What type of electromagnetic wave lies between radiowaves and infrared wavelengths?
Gamma rays
Microwave
Visible
Ultraviolet
10
Which is NOT a disadvantage of nuclear FUSION. (Careful!!!)
VERY expensive
Produces radioactive decay
Requires huge temperatures and pressures
Not yet successfully developed
11
Q = It. In a kettle, a current of 2.5 A flows for 30 seconds. How much charge has passed?
75 C
21 C
65 C
65 A
12
Which of these can be used to "see" thermal heat, e.g. heat loss from a house or a person.
Infrared
Microwaves
X-rays
Radiowaves
