Newton's Laws of Motion Review

Front

What is Newton's First Law of Motion?

Back

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

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.

Front

How do you calculate force according to Newton's Second Law?

Back

Force is calculated by multiplying mass and acceleration (F = m × a).

Front

What is Newton's Third Law of Motion?

Back

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

Front

What happens to the motion of an object if no net force acts on it?

Back

The object will maintain its current state of motion, either at rest or moving at a constant velocity.

Front

What is the relationship between mass and weight?

Back

Weight is the force of gravity acting on an object, calculated as weight = mass × gravitational acceleration (W = m × g).

Front

What is gravitational acceleration on Earth?

Back

Gravitational acceleration on Earth is approximately 9.81 m/s².

Front

If two objects have the same mass, how do their inertias compare?

Back

If two objects have the same mass, they have the same inertia.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, caused by the contact between two surfaces.

Front

What is the effect of air resistance on falling objects?

Back

Air resistance slows down the motion of falling objects, especially those with larger surface areas.