8th grade Unit 8.3 Quarterly Exam
Authored by Niza Bernales
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8th Grade
Used 19+ times
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30 questions
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1.
OPEN ENDED QUESTION
30 sec • Ungraded
Ava puts two magnetic toy trains very close to each other on a track. What will happen next and why?
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2.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Sound is produced by -----
Heat energy
Low temperatures
Vibrations
Friction
3.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Sound needs a medium.
True
False
4.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
Sound waves travel the fastest through ---
Liquids
Gases
Solids
5.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
A sound wave cannot travel through which of the following?
Metal
Water
Air
Vacuum
6.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
What do magnets stick to?
copper
wood
iron
plastic
7.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
What would increase the strength of an electromagnet?
Increasing the number of coils of wire
Inserting a wooden core inside the coil
Changing the direction of the current
Decreasing the number of coils of wire
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