Motion and Forces

Front

What is the definition of force in physics?

Back

A force is a push or pull acting upon an object as a result of its interaction with another object.

Front

What are the two main types of forces?

Back

Contact forces and non-contact forces.

Front

What is an example of a contact force?

Back

Friction, tension, and normal force are examples of contact forces.

Front

What is an example of a non-contact force?

Back

Gravity, magnetic force, and electrostatic force are examples of non-contact forces.

Front

What does it mean when an object is in motion?

Back

An object is in motion if its position changes relative to a reference point over time.

Front

What is the relationship between force and motion?

Back

A force applied to an object can cause it to accelerate, change direction, or change shape, thus affecting its motion.

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 Newton's Second 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 (F=ma).

Front

What is Newton's Third Law of Motion?

Back

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

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.