1st Law of Motion and Friction flashcard

Front

What does Newton's 1st Law of Motion state?

Back

An object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity unless acted upon by an unbalanced force.

Front

What is an example of Newton's 1st Law of Motion in everyday life?

Back

When a car suddenly stops, passengers lurch forward due to inertia.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its state of motion, either by starting to move, stopping, or changing direction.

Front

What is friction?

Back

Friction is a force that opposes the relative motion of two surfaces in contact.

Front

How does friction affect motion?

Back

Friction can slow down or stop the motion of an object, depending on the surfaces in contact and the force applied.

Front

What happens to an object in motion if no external forces act on it?

Back

It will continue to move at a constant velocity in a straight line.

Front

What is the relationship between mass and inertia?

Back

The greater the mass of an object, the greater its inertia, meaning it will resist changes in its motion more than a lighter object.

Front

What is the formula for calculating frictional force?

Back

Frictional force = coefficient of friction × normal force.

Front

What are the two types of friction?

Back

Static friction (preventing motion) and kinetic friction (resisting motion when objects are sliding past each other).