Topic 2: Exploring Forces

Front

force

Back

a push or a pull

Front

normal force

Back

an applied force that is perpendicular to the object

Front

contact force

Back

a force exerted when objects are touching each other

Front

non-contact force

Back

a force exerted at a distance

Front

friction

Back

a contact force that two surfaces exert on each other when they push or rub against each other

Front

gravity

Back

A non-contact force that pulls objects with mass toward each other.

Front

magnetism

Back

The attractive or repulsive force exerted by magnetic materials.

Front

magnitude

Back

Strength or degree.

Front

balanced forces

Back

Two forces acting on the same object that are equal in strength and opposite in direction.

Front

unbalanced forces

Back

Two forces acting on the same object that are not equal in strength and opposite in direction.