What is Newton's 1st Law of Motion?
Contact Forces and Non-Contact Forces Review

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Science
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Newton's 1st Law states that an object at rest will remain at rest, and an object in motion will continue to move at a constant velocity unless acted upon by an unbalanced force.
2.
FLASHCARD QUESTION
Front
What is Newton's 2nd Law of Motion?
Back
Newton's 2nd Law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass, expressed as F=ma.
3.
FLASHCARD QUESTION
Front
What is Newton's 3rd Law of Motion?
Back
Newton's 3rd Law states that for every action, there is an equal and opposite reaction.
4.
FLASHCARD QUESTION
Front
What is the difference between contact forces and non-contact forces?
Back
Contact forces require physical contact between objects (e.g., friction, tension), while non-contact forces act at a distance (e.g., gravitational, magnetic, electric forces).
5.
FLASHCARD QUESTION
Front
What is gravitational force?
Back
Gravitational force is the attractive force between two masses, which depends on their masses and the distance between them.
6.
FLASHCARD QUESTION
Front
How does a motor convert energy?
Back
A motor converts electrical energy into mechanical energy.
7.
FLASHCARD QUESTION
Front
What is the role of mass in gravitational attraction?
Back
The gravitational attraction between two objects increases with the mass of the objects.
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