Science Worksheet - Grade 8 Intermediate Level - The University Of The State Of New York - 2012 Page 12

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40 Fossil fuels are considered nonrenewable
43 Sound waves are not able to travel through
because they
(1) a cloud
(3) metal
(1) produce pollution
(2) a vacuum
(4) water
(2) are no longer used by humans
(3) often contain microscopic animals
44 The diagram below shows two magnets.
(4) take millions of years to form
S
N
N
S
41 The diagram below shows a cross section of a
waterfall. Points A, B, C, and D represent locations
If the magnets are brought closer together, they
in the stream.
will
A
(1) attract each other with a stronger force
B
(2) attract each other with a weaker force
(3) repel each other with a stronger force
(4) repel each other with a weaker force
C
D
45 The diagram below shows a person using a
simple machine to move a rock.
At which location does the water have the greatest
kinetic energy?
(1) A
(3) C
(2) B
(4) D
Note that question 42 has only three choices.
42 If the force used to push a shopping cart increases,
Which simple machine is the person using?
the cart’s acceleration will
(1) pulley
(3) wheel and axle
(1) decrease
(2) inclined plane
(4) lever
(2) increase
(3) remain the same
[12]
Grade 8 Science — June ’12

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