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Worksheetsthe gold foil Scattering Year 11
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
The rate at which a radioactive element decays is its ____.
a)
quarter life
b)
whole life
c)
wonderful life
d)
half life
2.
Name the instrument used to detect radioactivity.
a)
voltmeter
b)
ohmeter
c)
seismograph
d)
geiger counter
3.
Which scientist was not involved in the gold foil experiment?
a)
Ernest Rutherfud
b)
Hans Geiger
c)
Ernest Marsden
d)
Thomas Dalton
4.
What particle was used in the gold foil experiment?
a)
Beta Particle
b)
Alpha particle
c)
Gamma ray
5.
Approximately how many particles totally rebounded back towards the source?
a)
50%
b)
1/8000
c)
1/400
d)
1/200
6.
A zinc sulphide fluorescent screen was used to detect the particles scattering. A scintillation was observed - what is a scintillation?
a)
A high pitched sound.
b)
A small sound with visible light
c)
a small flash of visible or ultraviolet light
d)
a small vibration on the wall of the screen
7.
Most of the alpha particles went straight through the gold foil. This suggested that....
a)
There is no interference between alpha and gold.
b)
Most of the atom is made up of empty space.
c)
The alpha particles were very tiny.
d)
None of the above
8.
Some of the alpha particles fired at the gold foil were deflected at angles. This was due to...
a)
reflection of the alpha source when it it the fluorescent screen.
b)
The alpha particles hitting the gold nucleus.
c)
Repulsion forces between the positively charged nucleus and the positively charged alpha particles.
d)
A mis-firing of the alpha source
9.
Which scientist came up with the Plum pudding theory?
a)
Hantaro Nagaoka
b)
Ernest Rutherfud
c)
J.J Thomson
d)
Charles Darwin
10.
What did the Plum pudding model suggest about the structure of atoms?
a)
That neutrons and electrons were arranged in a sphere.
b)
that is was a sphere of positive charge throughout which the electrons were distributed
c)
That an atom was filled with neutrons, protons and a sphere of negative charge.
d)
That neutrons, protons and electrons were distributed throughout a sphere.
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