Newton's First Law and Forces Flashcard

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 with the same speed and in the same direction unless acted upon by a net external force.

Front

What is the definition of inertia?

Back

Inertia is an object's tendency to resist changes in its state of motion, meaning it will remain at rest or continue moving at a constant velocity unless acted upon by an external force.

Front

What is the role of friction in motion?

Back

Friction is a force that opposes the motion of an object, acting in the opposite direction to the movement.

Front

How do you determine the direction of the frictional force acting on a moving object?

Back

The frictional force always acts in the direction opposite to the motion of the object.

Front

What is a free-body diagram?

Back

A free-body diagram is a graphical representation used to visualize the forces acting on an object, showing all external forces and their directions.

Front

What types of forces are represented in a free-body diagram?

Back

Only external forces acting on the object are represented in a free-body diagram.

Front

How do you represent perpendicular forces in a free-body diagram?

Back

Perpendicular forces are represented by arrows drawn at a right angle to each other.

Front

What is mass, and what does it depend on?

Back

Mass is the quantity of matter in an object, depending on the number and types of atoms that compose it.

Front

What is the difference between mass and weight?

Back

Mass is a measure of the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is the formula for calculating weight?

Back

Weight can be calculated using the formula: Weight = mass × gravitational acceleration (W = mg).