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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
Convection
D
Conduction
2) A toy car tolls 8 meters in 2 seconds. What is the average speed of the toy car?
A
10 m/s
B
4 m/s
C
6 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
Puddles of water evaporating during a sunny day
B
Ice crystals forming on a car windsheild
C
Droplets collecting on the outside of a pan filled with cold water
D
Raindrops falling from the sky
4) Which of the following examples represents the GREATEST amount of potential energy?
A
water spilling over a waterfall
B
a helium ballon rising in the air
C
a screen door spring fully stretched
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
nuclear energy
B
Solar energy
C
geothermal energy
D
wind energy
6) Which of the following is a chemical change that can take place to an iron nail?
A
Melting when heated
B
sticking to a magnet
C
rusting over time
D
bending when struck by a hammer
7) A chemical change always results in
A
a change in size
B
the formation of a new substance
C
a change in state of matter
D
a precipitate being formed
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
Frowing plants on a window sill
C
Warming liquid in test tube over a candle flame
D
Mixing two chemicals which produces heat
10) Energy transformation occurs when a splitting atom releases energy to heat water to produce steam. How do you describe this energy transformation?
A
electrical energy to heat energy
B
heat energy to nuclear energy
C
Chemical energy to heat energy
D
nuclear energy to heat energy
*select an answer for all questions
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