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Study Guide 3
Test Description: Practice for CBA #2
Instructions: Answer all questions to get your test result.
1) Together the atmosphere and ocean current systems help to regulate Earth\'s Overall temperature. The transfer of heat in currents of air and water is called?
A
Conduction
B
Convection
C
Radiation
D
Absorption
2) A toy car tolls 8 meters in 2 seconds. What is the average speed of the toy car?
A
6 m/s
B
10 m/s
C
4 m/s
D
16 m/s
3) Which of these situations is an example of thermal energy being added to water to change its state of matter?
A
Droplets collecting on the outside of a pan filled with cold water
B
Ice crystals forming on a car windsheild
C
Puddles of water evaporating during a sunny day
D
Raindrops falling from the sky
4) Which of the following examples represents the GREATEST amount of potential energy?
A
a screen door spring fully stretched
B
water spilling over a waterfall
C
a helium ballon rising in the air
D
yeast growing in a petri dish
5) Which of the following energy types is considered very efficient but also produces dangerous waste products?
A
geothermal energy
B
wind energy
C
nuclear energy
D
Solar energy
6) Which of the following is a chemical change that can take place to an iron nail?
A
sticking to a magnet
B
bending when struck by a hammer
C
rusting over time
D
Melting when heated
7) A chemical change always results in
A
a precipitate being formed
B
a change in size
C
the formation of a new substance
D
a change in state of matter
8) Energy from the sun is required for water to evaporate from the oceans. This energy travels through space by
A
conduction
B
mechanical
C
radiation
D
convection
9) What action in a science lab transforms electrical energy to heat energy?
A
Using a hot plate to boil a beaker of water
B
Mixing two chemicals which produces heat
C
Warming liquid in test tube over a candle flame
D
Frowing plants on a window sill
10) Energy transformation occurs when a splitting atom releases energy to heat water to produce steam. How do you describe this energy transformation?
A
heat energy to nuclear energy
B
nuclear energy to heat energy
C
electrical energy to heat energy
D
Chemical energy to heat energy
*select an answer for all questions
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