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8th Grade Science 2nd Quarter Assessment Practice (Part 2)
Test Description: This is another practice set of questions to help you prepare for the upcoming summative assessment.
Instructions: Answer all questions to get your test result.
1) To measure work, you need the following quantities:
A
distance, time
B
force, power
C
force, time
D
force, distance
2) If a person lifts a 200 newton weight a total of 4 meters, the work done is:
A
196 joules
B
800 joules
C
204 joules
D
50 joules
3) If a person holds a 200 newton weight in their hand motionless, the work done is:
A
200 joules
B
14 joules on Monday, 34 joules on any other day
C
none whatsoever (due to the hand not moving)
D
impossible to determine
4) Power is the rate at which _____ is done.
A
listening to music loudly
B
work
C
distance
D
force
5) If a person climbs 20 meters of stairs weighing 500 N in 10 seconds, the power generated is equal to:
A
1,000 watts
B
10 watts
C
100,000 watts
D
100 watts
6) If a student weighing 700 newtons climbs a 5 meter flight of stairs quickly, how will their power compare to that of a 100 watt light bulb?
A
their power will be much less
B
their power will be exactly the same
C
their power will be zero
D
their power will be greater
7) Which of the following is not a state of matter?
A
gas
B
solid
C
cube
D
liquid
8) If one drops red food coloring in different temperature water, which temperature will yield the quickest complete coloring of water?
A
40 degrees celsius
B
30 degrees celsius
C
10 degrees celsius
D
20 degrees celsius
9) Which of the following best describes an independent variable?
A
when a variable moves into an apartment
B
what is kept the same in an experiment
C
what is measured as a result of what was purposely changed in the experiment
D
what is purposely changed in the experiment
10) Which of the following is NOT part of a well written, four part conclusion?
A
Support with data
B
Restate Hypothesis
C
3 observations
D
Answer the purpose
*select an answer for all questions
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