Newtons 2nd Law
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
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15 questions
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1.
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. It can be expressed with the formula: F = ma, where F is force, m is mass, and a is acceleration.
Tags
NGSS.MS-PS2-2
2.
FLASHCARD QUESTION
Front
What does the formula F = ma represent?
Back
The formula F = ma represents Newton's 2nd Law of Motion, where F is the net force applied to an object, m is the mass of the object, and a is the acceleration produced by the force.
Tags
NGSS.MS-PS2-2
3.
FLASHCARD QUESTION
Front
If a 2000kg car and a 6000kg truck collide, which experiences greater acceleration?
Back
The 2000kg car experiences greater acceleration because acceleration is inversely proportional to mass when the same force is applied.
Tags
NGSS.MS-PS2-2
4.
FLASHCARD QUESTION
Front
What is the relationship between force, mass, and acceleration?
Back
The relationship is defined by Newton's 2nd Law: the greater the mass of an object, the more force is needed to accelerate it. Conversely, for a given force, a smaller mass will accelerate more.
Tags
NGSS.MS-PS2-2
5.
FLASHCARD QUESTION
Front
How do you calculate weight using mass?
Back
Weight can be calculated using the formula: Weight (W) = mass (m) × gravitational acceleration (g), where g is approximately 9.81 m/s² on Earth.
Tags
NGSS.MS-PS2-4
6.
FLASHCARD QUESTION
Front
What is terminal velocity?
Back
Terminal velocity is the constant speed that a freely falling object eventually reaches when the resistance of the medium (like air) prevents further acceleration.
Tags
NGSS.MS-PS3-1
NGSS.MS-PS3-5
7.
FLASHCARD QUESTION
Front
What happens to the forces acting on an object at terminal velocity?
Back
At terminal velocity, the force of gravity acting downward is balanced by the drag force acting upward, resulting in a net force of zero and no further acceleration.
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