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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
Absorption
B
Radiation
C
Conduction
D
Convection
2) A toy car tolls 8 meters in 2 seconds. What is the average speed of the toy car?
A
16 m/s
B
4 m/s
C
10 m/s
D
6 m/s
3) Which of these situations is an example of thermal energy being added to water to change its state of matter?
A
Raindrops falling from the sky
B
Droplets collecting on the outside of a pan filled with cold water
C
Puddles of water evaporating during a sunny day
D
Ice crystals forming on a car windsheild
4) Which of the following examples represents the GREATEST amount of potential energy?
A
a helium ballon rising in the air
B
yeast growing in a petri dish
C
water spilling over a waterfall
D
a screen door spring fully stretched
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
Melting when heated
D
rusting over time
7) A chemical change always results in
A
a precipitate being formed
B
the formation of a new substance
C
a change in size
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
radiation
B
conduction
C
convection
D
mechanical
9) What action in a science lab transforms electrical energy to heat energy?
A
Warming liquid in test tube over a candle flame
B
Using a hot plate to boil a beaker of water
C
Mixing two chemicals which produces heat
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
electrical energy to heat energy
C
Chemical energy to heat energy
D
nuclear energy to heat energy
*select an answer for all questions
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