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WorksheetsPHS: Edexcel sP6 Radioactivity Review
Total questions: 30
Worksheet time: 2hrs 30mins
Name
Class
Date
1.
Which subatomic particles would you find in the nucleus of an atom?
a)
protons and neutrons
b)
protons and electrons
c)
neutrons only
d)
protons only
2.
What did Ernest Rutherford's team use to show that most of an atom was empty space?
a)
alpha particles
b)
beta particles
c)
gamma particles
d)
x-rays
3.
Approximately, how big is the radius of an atom?
a)
1 x 10-10 m
b)
1 x 10-5 m
c)
1 x 10-100m
d)
1 x 10-50 m
4.
What is the relative mass of a proton?
a)
1
b)
0
c)
1/1835
d)
2
5.
What is the relative mass of a neutron?
a)
1
b)
0
c)
1/1835
d)
2
6.
Two atoms with the same number of protons, but different number of neutrons are known as?
a)
isotopes
b)
ions
c)
elements
d)
isomers
7.
Carbon-14 is different to carbon-12 because...
a)
C-14 has two more neutrons than C-12
b)
There is no difference
c)
C-14 has 1 extra proton and 1 extra neutron than C-12
d)
C-14 has two more protons than C-12
8.
If an atom absorbs energy, it can cause it's electrons to move to a "lower" orbit.
a)
false
b)
true
9.
What do we call the colours of light emitted from atoms when their electrons fall back to their original orbits?
a)
emission spectrum
b)
absorbtion spectrum
c)
electromagnetic radiation
d)
frequency radiation
10.
What do we call an atom that has lost or gained an electron?
a)
Ion
b)
Isotope
c)
Isomer
d)
Atom
11.
Radiation that causes an electron to escape from its orbit around an atom is called ...?
a)
Ionising
b)
Damaging
c)
Ionosphering
d)
Electrifying
12.
The radiation that we are constantly exposed to at a low level is called...?
a)
Background radiation
b)
Ionising Radiation
c)
Electromagnetic radiation
d)
Atmospheric radiation
13.
How can we measure the "amount" of radioactivity?
a)
Geiger-Muller tube
b)
You can't
c)
Gerd-Muller tube
d)
Kert-Geigher tube
14.
Which type of radiation contains two protons and two neutrons?
a)
alpha
b)
beta
c)
positrons
d)
gamma
15.
Which type of radiation contains high-energy, high speed electrons?
a)
alpha
b)
beta
c)
positrons
d)
gamma
16.
Which type of radiation contains high-energy, high speed particles, with the same mass, but opposite charge to electrons?
a)
alpha
b)
beta
c)
positrons
d)
gamma
17.
Which type of radiation contains high-frequency electromagnetic waves?
a)
alpha
b)
beta
c)
positrons
d)
gamma
18.
Which type of radiation would be stopped by a sheet of paper?
a)
alpha
b)
beta
c)
positrons
d)
gamma
19.
Which type of radiation needs several metres of thick concrete to stop it?
a)
alpha
b)
beta
c)
positrons
d)
gamma
20.
During beta- decay, what happens in the nucleus?
a)
a neutron changes into a proton and an electron
b)
nothing
c)
a proton changes into a neutron and an electron
d)
a proton changes into an electron and a positron
21.
What type of equation shows us what happens during radiaoactive decay?
a)
nuclear equation
b)
ionic equation
c)
half equation
d)
reversible equation
22.
What is the activity of a radioactive sustance measured in?
a)
becquerels (Bq)
b)
hertz (Hz)
c)
curies (Cu)
d)
teslas (T)
23.
What do we call the time taken for half the unstable nuclei in a sample to decay?
a)
half-life
b)
decay-time
c)
20 minutes
d)
exponential
24.
Which of these would not be a suitable use of gamma radiation?
a)
in smoke detectors
b)
to sterilise surgical instruments
c)
diagnosing leaks in pipes
d)
to detect cancers as a tracer)
25.
Which type of radiation would be the most suitable to help control the thickness of paper during its manufacture?
a)
alpha
b)
beta
c)
gamma
d)
x-rays
26.
What do we call the damage done to DNA when exposed to ionising radiation?
a)
mutation
b)
ionising
c)
cancer
d)
tumuor
27.
When a person gets radioactive particles on their skin, or in their body, it's known as...?
a)
contamination
b)
irradiation
c)
ionising
d)
dangerous
28.
Which process involves the release of energy when joining together two smaller nuclei to make one larger nucleus?
a)
fusion
b)
fission
c)
exothermic
d)
synthesis
29.
Which process involves the release of energy when splitting a large nucleus into two, or more, smaller nuclei?
a)
fission
b)
fusion
c)
exofusion
d)
fissuring
30.
In the Sun, hydrogen nuclei are fused together to form what?
a)
helium
b)
oxygen
c)
nitrogen
d)
carbon
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