Speed & Newton's Laws of 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 friction?

Back

A force that opposes the motion of an object, acting parallel to the surface of contact.

Front

What is velocity?

Back

A vector quantity that refers to the rate at which an object changes its position, including both speed and direction.

Front

What is net force?

Back

The total force acting on an object when all the individual forces are combined.

Front

What is inertia?

Back

The tendency of an object to resist changes in its state of motion; the greater the mass, the greater the inertia.

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 includes both speed and direction.

Front

What is gravitational force?

Back

The attractive force between two objects due to their masses; it pulls objects toward each other.

Front

What is an example of balanced forces?

Back

When two people push on opposite sides of a box with equal force, the box does not move.