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Review 2nd Nine Weeks
Test Description: Review
Instructions: Answer all questions to get your test result.
1) Graph C
A
none of these
B
Graph A
C
Graph B
D
Graph C
2) Together the atmosphere and ocean current systems help to regulate Earths overall temperature. The transfer of heat in currents of air and water is called
A
radiation
B
absorption
C
conduction
D
convection
3) A toy car rolls 8 meters in 2 seconds. What is the average speed of the toy car?
A
16 m/s
B
4 m/s
C
6 m/s
D
10 m/s
4) Which statement would most likely explain why students coasting bicycles down a large hill have a greater final speed that those coasting down a small hill.
A
The large hill had greater mass than the small hill.
B
The small hill had a bumpier surface than the small hill.
C
There was more friction coasting down the large hill.
D
The large hill was taller than the small hill.
5) Solar cells convert the suns energy into electricity and can be very expensive. Which would be the most likely result if scientists created a cell that everyone could afford?
A
a decrease in electricity use
B
a decrease in stormy weather
C
a reduction in the number of cars
D
a reduction in air pollution
6) Which of these situations is an example of thermal energy being added to water to change its state of matter?
A
ice crystals forming on a car windshied
B
Puddles of water evaporating during a sunny day.
C
Droplets collecting on the outside of a pan filled with cold water
D
Raindrops falling from the sky
7) Which of the following examples represents the GREATEST amount of potential energy?
A
a screen door spring fully stretched
B
yeast growing in a Petri dish
C
a helium balloon rising in the air
D
water spilling over a waterfall
8) Which of the following energy types is considered very effecient but also produces dangerous waste products?
A
solar energy
B
wind energy
C
geothermal energy
D
nuclear energy
9) A chemical change always results in -
A
a change in size
B
a change in state of matter
C
the formation of a new substance
D
a precipitate being formed
10) Energy from the sun is required for water to evaporate from the oceans. This energy travels through space by-
A
conduction
B
mechanical
C
convection
D
radiation
*select an answer for all questions
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