7th Grade Semester Exam

Flashcard
•
Science
•
7th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a balanced force?
Back
A balanced force occurs when two forces acting on an object are equal in size but opposite in direction, resulting in no change in motion.
2.
FLASHCARD QUESTION
Front
What is an unbalanced force?
Back
An unbalanced force occurs when two forces acting on an object are not equal, causing the object to accelerate in the direction of the greater force.
3.
FLASHCARD QUESTION
Front
What is a compound?
Back
A compound is a substance formed when two or more elements are chemically bonded together, and it can only be separated by chemical means.
4.
FLASHCARD QUESTION
Front
What is an element?
Back
An element is a pure substance that cannot be broken down into simpler substances by chemical means.
5.
FLASHCARD QUESTION
Front
What is a mixture?
Back
A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.
6.
FLASHCARD QUESTION
Front
What is velocity?
Back
Velocity is the speed of an object in a specific direction.
7.
FLASHCARD QUESTION
Front
What is the equation for speed?
Back
Speed = distance/time.
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