Semester-1 Review

Flashcard
•
Science
•
8th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is Newton's First Law of Motion?
Back
An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by a net external force.
2.
FLASHCARD QUESTION
Front
How does Newton's First Law apply to a car crash?
Back
Passengers continue moving forward when the car stops suddenly due to inertia.
3.
FLASHCARD QUESTION
Front
What is the chemical symbol for Oxygen?
Back
O
4.
FLASHCARD QUESTION
Front
What does the chemical equation @@2H_2 + O_2 ightarrow 2H_2O@@ demonstrate?
Back
The law of conservation of mass, which states that mass is neither created nor destroyed in a chemical reaction.
5.
FLASHCARD QUESTION
Front
What is the relationship between the mass of reactants and products in a chemical reaction?
Back
The mass of the reactants equals the mass of the products.
6.
FLASHCARD QUESTION
Front
What is Newton's Second Law of Motion?
Back
The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F=ma).
7.
FLASHCARD QUESTION
Front
What is Newton's Third Law of Motion?
Back
For every action, there is an equal and opposite reaction.
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