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Newton's Laws of Motion and Force Quiz

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Questions and Answers

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?

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?

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?

Newton (N) Signup and view all the answers

What does the gravitational force refer to?

The force on an object due to gravity Signup and view all the answers

What is the scientific unit of force for weight?

Newton (N) Signup and view all the answers

What does Newton's first law of motion refer to?

The law of inertia Signup and view all the answers

What is the SI unit of force?

Newton (N) Signup and view all the answers

What is the relationship between an object's acceleration, force, and mass according to Newton's second law?

Acceleration is directly proportional to force and inversely proportional to mass Signup and view all the answers

What does weight refer to in physics?

The force on an object due to gravity Signup and view all the answers

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.