Newtons Laws

Front

What is Newton's 1st Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by a net external force.

Front

What is Newton's 2nd Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Mathematically, it is expressed as F=ma.

Front

What is Newton's 3rd Law of Motion?

Back

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

Front

What is the formula for calculating weight?

Back

Weight (W) = mass (m) × acceleration due to gravity (g).

Front

What is the normal force?

Back

The normal force is the force exerted by a surface to support the weight of an object resting on it, acting perpendicular to the surface.

Front

If an object has a mass of 10 kg and is subjected to an acceleration of 5 m/s², what is the net force acting on it?

Back

Net Force = mass × acceleration = 10 kg × 5 m/s² = 50 N.

Front

What happens to an object's mass when it is taken to a different planet?

Back

The mass of an object remains constant regardless of its location; it does not change with gravity.

Front

What is the relationship between mass and weight?

Back

Weight is the force exerted by gravity on an object, which depends on both the mass of the object and the acceleration due to gravity.

Front

How does friction affect motion according to Newton's laws?

Back

Friction opposes the motion of an object, affecting the net force and thus the acceleration according to Newton's 2nd Law.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion; it is directly related to the mass of the object.