Newton's test

Front

What is Newton's First Law of Motion?

Back

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

Front

What is the normal force?

Back

The normal force is the force exerted by a surface that supports the weight of an object resting on it, acting perpendicular to the surface.

Front

What are the two types of friction?

Back

Kinetic friction (friction between moving surfaces) and static friction (friction between stationary surfaces).

Front

What does static friction do?

Back

Static friction prevents an object from starting to move when a force is applied.

Front

What does kinetic friction do?

Back

Kinetic friction opposes the motion of two surfaces sliding past each other.

Front

How does the normal force affect friction?

Back

The magnitude of the frictional force is directly proportional to the normal force acting on the object.

Front

What is the direction of frictional force?

Back

Frictional force always acts opposite to the direction of the object's motion.

Front

What happens when the net force on an object is zero?

Back

The object remains at rest or continues to move at a constant velocity.

Front

What is the formula for calculating frictional force?

Back

Frictional force (f) = coefficient of friction (μ) × normal force (N).

Front

What is the coefficient of friction?

Back

The coefficient of friction is a dimensionless scalar value that represents the frictional force between two bodies.