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Review 2nd Nine Weeks
Test Description: Review
Instructions: Answer all questions to get your test result.
1) Graph C
A
Graph A
B
none of these
C
Graph C
D
Graph B
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
absorption
B
convection
C
conduction
D
radiation
3) A toy car rolls 8 meters in 2 seconds. What is the average speed of the toy car?
A
6 m/s
B
16 m/s
C
4 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
There was more friction coasting down the large hill.
B
The large hill was taller than the small hill.
C
The small hill had a bumpier surface than the small hill.
D
The large hill had greater mass 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 reduction in the number of cars
C
a reduction in air pollution
D
a decrease in stormy weather
6) 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 windshied
7) 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
yeast growing in a Petri dish
D
a helium balloon rising in the air
8) Which of the following energy types is considered very effecient but also produces dangerous waste products?
A
solar energy
B
nuclear energy
C
geothermal energy
D
wind energy
9) A chemical change always results in -
A
a change in size
B
the formation of a new substance
C
a precipitate being formed
D
a change in state of matter
10) Energy from the sun is required for water to evaporate from the oceans. This energy travels through space by-
A
conduction
B
convection
C
radiation
D
mechanical
*select an answer for all questions
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