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Questions and Answers
Inertia is unrelated to mass.
Inertia is unrelated to mass.
False
Weight can be calculated using the formula Fg = mg.
Weight can be calculated using the formula Fg = mg.
True
The normal force is always equal to the weight of the object.
The normal force is always equal to the weight of the object.
False
The greater the inertia, the less resistance there is to acceleration.
The greater the inertia, the less resistance there is to acceleration.
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The acceleration due to gravity affects the weight of an object.
The acceleration due to gravity affects the weight of an object.
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A non-contact force is defined as a force that requires physical contact between two objects.
A non-contact force is defined as a force that requires physical contact between two objects.
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Inertia is the tendency of an object to remain in motion unless acted upon by an external force.
Inertia is the tendency of an object to remain in motion unless acted upon by an external force.
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Contact force involves a physical push or pull between two objects.
Contact force involves a physical push or pull between two objects.
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The net force on an object is only considered when all forces acting on it are balanced.
The net force on an object is only considered when all forces acting on it are balanced.
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Unbalanced forces are sometimes referred to as resultant force.
Unbalanced forces are sometimes referred to as resultant force.
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Normal forces are applied parallel to the surface.
Normal forces are applied parallel to the surface.
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Friction is a force that enhances motion.
Friction is a force that enhances motion.
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Tension refers to the force exerted by a rope or cable.
Tension refers to the force exerted by a rope or cable.
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According to Newton's First Law, a moving object will stop unless acted upon by a net force.
According to Newton's First Law, a moving object will stop unless acted upon by a net force.
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Newton's Second Law is represented by the equation Fnet = m/a.
Newton's Second Law is represented by the equation Fnet = m/a.
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Newton's Third Law states that for every action there is an equal and opposite reaction force.
Newton's Third Law states that for every action there is an equal and opposite reaction force.
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The net force acting on an object determines its behavior according to Newton's Second Law.
The net force acting on an object determines its behavior according to Newton's Second Law.
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An object at rest will stay at rest unless acted upon by a net force.
An object at rest will stay at rest unless acted upon by a net force.
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Study Notes
Force Types
- Contact Force: A force that requires physical touch between objects.
- Non-Contact Force: Forces applied by fields; examples include gravity, electric, and magnetic forces.
- Net Force: The overall force; the sum of all the forces acting on an object. It's also known as the resultant force. Represents unbalanced forces.
- Inertia: The tendency of an object to stay at rest or maintain its constant velocity. Inertia increases with mass.
Force Definitions
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Weight (Fg): The force of gravity acting on an object; calculated as mass (m) multiplied by acceleration due to gravity (g). Fg = mg
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Normal Force (Fn): A force exerted by a surface perpendicular to the surface; prevents objects from falling through surfaces.
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Friction (Ff): A force that opposes motion.
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Tension (Ft or T): A pulling force transmitted through a string, cord, rope, or cable.
Newton's Laws of Motion
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Newton's First Law: An object at rest stays at rest, and an object in motion stays in motion with the same velocity, unless acted upon by an unbalanced force.
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Newton's Second Law: The net force acting on an object is equal to the mass of the object multiplied by its acceleration. Fnet = ma
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Newton's Third Law: For every action, there is an equal and opposite reaction.
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Description
Test your understanding of various force types and Newton's Laws of Motion. This quiz covers contact and non-contact forces, inertia, and key force definitions like weight, normal force, and friction. Challenge yourself to see how well you grasp these fundamental concepts in physics.
