Friction Flashcard

Front

What is friction?

Back

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

Front

What factors affect the amount of friction between two surfaces?

Back

The amount of friction depends on the nature of the surfaces in contact and the normal force pressing them together.

Front

What is the difference between static and kinetic friction?

Back

Static friction acts on objects that are not moving, while kinetic friction acts on objects that are sliding over each other.

Front

How does surface roughness affect friction?

Back

Rougher surfaces generally have greater friction due to increased interlocking between the surfaces.

Front

What happens to a ball rolling up a hill when the force pushing it stops?

Back

The ball will roll back down the hill due to the force of gravity.

Front

Why is friction important in everyday life?

Back

Friction allows us to walk without slipping, enables vehicles to grip the road, and is essential for many mechanical processes.

Front

What is the role of friction in sports, such as bowling or basketball?

Back

Friction affects how the ball interacts with the surface, influencing its speed, direction, and control.

Front

What is the effect of ice on friction?

Back

Ice reduces friction, making surfaces slippery and increasing the risk of slipping.

Front

How can friction be increased on icy roads?

Back

Adding materials like sand increases the frictional force between car tires and icy roads.

Front

What is the coefficient of friction?

Back

The coefficient of friction is a numerical value that represents the frictional force between two surfaces divided by the normal force.