Newton's Laws

Front

What is Newton's second law of motion?

Back

Acceleration is caused by a force acting on a mass, expressed as F=ma (Force = mass x acceleration).

Front

How does Newton’s third law of motion apply to rocket propulsion?

Back

For every action, there is an equal and opposite reaction; the hot gases expelled from the rocket push it in the opposite direction.

Front

Define force in the context of physics.

Back

A force is a push or pull acting upon an object.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What does it mean when the net force on an object is zero?

Back

When the net force is zero, the forces acting on the object are balanced, resulting in no acceleration.

Front

What is inertia according to Newton's first law of motion?

Back

Inertia is the tendency of an object to resist changes in its state of motion; an object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the formula for calculating force?

Back

Force (F) is calculated using the formula F = ma, where m is mass and a is acceleration.

Front

Explain the concept of balanced forces.

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to accelerate, as the forces acting on it are not equal and opposite.

Front

How does mass affect acceleration according to Newton's second law?

Back

According to Newton's second law, an increase in mass will result in a decrease in acceleration if the same force is applied.