Very Short Question and Answers - First Law of Motion

Newton's First Law of Motion states that an object at rest will remain at rest, and an object in motion will continue in motion with the same speed and in the same direction unless acted upon by an unbalanced external force.

Inertia is the tendency of an object to resist any change in its state of motion. It is directly related to the mass of the object.

The greater the mass of an object, the greater its inertia, which means it requires a larger force to change its state of motion.

Yes, an object can be in motion and have no net force acting on it if it is moving with a constant velocity.

The ball will continue to roll indefinitely at a constant speed in a straight line due to the absence of external forces.

A book lying on a table is an example of an object at rest that will remain stationary until a force (like a push) acts on it.

Passengers in the car will lurch forward due to inertia, as their bodies tend to continue moving forward at the same speed the car was traveling.

Friction is an external force that opposes motion and can cause an object that is in motion to eventually stop.

Yes, balanced forces result in zero net force and can keep an object at rest or moving at a constant velocity.

An unbalanced force occurs when the net force acting on an object is not zero, causing the object to accelerate or change direction.

A soccer ball that is kicked will travel until an outside force, like friction with the grass or a player's foot, stops it.

Yes, an object can be in equilibrium, meaning balanced forces, and still be moving at a constant speed in a straight line.

Seat belts apply an external force to passengers during sudden stops, preventing them from continuing forward due to inertia.

It establishes the foundation for understanding that forces are necessary to change the motion of an object.

Inertia explains why heavy objects are harder to push or pull than lighter ones, as they resist changes to their motion.

The tool will continue to move in the direction it was thrown due to inertia, as there is no air resistance or friction in space.

Inertia does not depend on speed; it is dependent solely on the mass of the object.

In basketball, when a player stops running and the ball is thrown, it continues in motion until acted upon by gravity and air resistance.

Net force is the vector sum of all the forces acting on an object, determining its acceleration according to Newton's Second Law.

The 'cart and ball' experiment, where a cart moves with a ball on it, and when the cart stops, the ball continues to roll forward until it hits a barrier.