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Questions and Answers
According to Newton's first law of motion, what is inertia?
According to Newton's first law of motion, what is inertia?
- The tendency of an object to resist any change in its motion (correct)
- The scientific unit of force
- The acceleration produced by a force
- The force applied to change the state of motion of an object
What is the SI unit of force?
What is the SI unit of force?
- Newton (N) (correct)
- Second (s)
- Meter (m)
- Kilogram (kg)
How can the relationship between an object's acceleration, force, and mass be described according to Newton's second law?
How can the relationship between an object's acceleration, force, and mass be described according to Newton's second law?
- Acceleration is inversely proportional to force and directly proportional to mass
- Acceleration is directly proportional to both force and mass
- Acceleration is directly proportional to force and inversely proportional to mass (correct)
- Acceleration is inversely proportional to both force and mass
What is the scientific unit of force for weight?
What is the scientific unit of force for weight?
What does the gravitational force refer to?
What does the gravitational force refer to?
What is the scientific unit of force for weight?
What is the scientific unit of force for weight?
What does Newton's first law of motion refer to?
What does Newton's first law of motion refer to?
What is the SI unit of force?
What is the SI unit of force?
What is the relationship between an object's acceleration, force, and mass according to Newton's second law?
What is the relationship between an object's acceleration, force, and mass according to Newton's second law?
What does weight refer to in physics?
What does weight refer to in physics?
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Study Notes
Newton's Laws of Motion
- Inertia is an object's tendency to resist changes in its motion, according to Newton's first law.
- The SI unit of force is the Newton (N), which is equivalent to kg·m/s².
Force and Acceleration
- According to Newton's second law, the relationship between an object's acceleration, force, and mass is described by the equation F = ma, where F is the net force, m is the mass, and a is the acceleration.
Weight and Gravitational Force
- The scientific unit of force for weight is the Newton (N), which is a measure of the gravitational force acting on an object.
- Gravitational force refers to the attractive force between two objects with mass.
- Weight, in physics, refers to the force exerted on an object by gravity, which is equal to the product of the object's mass and the acceleration due to gravity (mg).
Newton's First Law
- Newton's first law of motion, also known as the law of inertia, states that an object at rest will remain at rest, and an object in motion will continue to move with a constant velocity, unless acted upon by an external force.
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