Contact and non contact forces

Front

What is a contact force?

Back

A contact force is a force that requires physical contact between two objects to occur, such as friction, tension, and applied force.

Front

What is a non-contact force?

Back

A non-contact force is a force that acts on an object without physical contact, such as gravity, magnetic force, and electrostatic force.

Front

What is gravity?

Back

Gravity is a non-contact force that attracts two bodies towards each other, keeping planets in orbit around the sun.

Front

What is friction?

Back

Friction is a contact force that resists the sliding motion between two touching objects.

Front

What is an applied force?

Back

An applied force is a contact force that is applied to an object by a person or another object.

Front

What are balanced forces?

Back

Balanced forces are forces that are equal in size and opposite in direction, resulting in no change in motion.

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that are not equal and opposite, causing a change in motion of an object.

Front

What is normal force?

Back

Normal force is the support force exerted upon an object that is in contact with another stable object, acting perpendicular to the surface.

Front

What is tension?

Back

Tension is a contact force that is transmitted through a string, rope, or wire when it is pulled tight by forces acting from opposite ends.

Front

What is magnetic force?

Back

Magnetic force is a non-contact force that can attract or repel objects with magnetic properties.