Newton Laws of Motion

Front

What is inertia?

Back

Inertia is the property of an object to resist changes in its state of motion. All objects with mass have inertia.

Front

State Newton's First Law of Motion.

Back

An object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by a net external force.

Front

What is the relationship between force and motion according to Newton's Second Law?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. (F = ma)

Front

What does Newton's Third Law of Motion state?

Back

For every action, there is an equal and opposite reaction.

Front

Define net force.

Back

Net force is the vector sum of all the forces acting on an object.

Front

What happens when two objects exert forces on each other?

Back

They exert equal and opposite forces on each other.

Front

Explain the concept of action and reaction forces with an example.

Back

When a swimmer pushes the water backward (action), the water pushes the swimmer forward (reaction).

Front

What is the significance of the force of gravity on objects at rest?

Back

The force of gravity pulls objects downward, and if balanced by another force (like a table), the object remains at rest.

Front

How does mass affect inertia?

Back

The greater the mass of an object, the greater its inertia, making it harder to change its state of motion.

Front

What is the formula for calculating weight?

Back

Weight (W) is calculated using the formula W = mg, where m is mass and g is the acceleration due to gravity.