Gravity and Friction

Front

What is friction?

Back

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

Front

What direction does friction act in relation to a moving object?

Back

Friction acts in the opposite direction to the motion of the object.

Front

What happens to gravitational force as mass increases?

Back

As mass increases, the gravitational force also increases.

Front

What is the unit of measurement for force?

Back

The unit that measures force is the Newton.

Front

How can friction between solid surfaces be reduced?

Back

Friction can be reduced using lubricants.

Front

What type of attraction can cause friction between particles?

Back

Friction can be caused by electrical attraction between particles.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, depending on their masses and the distance between them.

Front

What is the formula for calculating gravitational force?

Back

The formula for gravitational force is F = G * (m1 * m2) / r^2, where F is the force, G is the gravitational constant, m1 and m2 are the masses, and r is the distance between the centers of the two masses.

Front

What is static friction?

Back

Static friction is the frictional force that prevents two surfaces from sliding past each other when at rest.

Front

What is kinetic friction?

Back

Kinetic friction is the frictional force that acts between moving surfaces.