…………………. is the force that acts at a distance without

touching.

............ is a push or pull.

……………. is an example of noncontact force.

Friction is ...............................................................................

……………… forces are equal in strength and opposite in direction.

Magnets can ……………………. other magnets.

……………………. acts between objects that are electrically charged.

Objects with different charges ……………………. one another.

……………… forces are equal in strength and opposite in direction.

Tension force is a type of noncontact force.

............................... is the sum of forces acting on an object.

....................... measures tension force.

Balanced forces can change the motion of an object.

..................... is the unit that measures the force.

When the net force is not equal to (0), so the forces are ................

a material in which electrical charges can move easily.

a material in which electrical charges can’t move easily.

If one object is positive and the other one is negative, the two objects will…………………….

........................ is a static discharge, but it is much more powerful

Objects with a lot of electric charges will have a greater electric force.

The strength of electric force becomes weaker as electrically charged objects get far from each other.

.......................... are magnets that can be turned on and off by an electric current.

..................... is the space where the force of a magnet acts.

........................ is the point where the magnetic force is the strongest.

…………… is the largest magnet with north and south poles.

The pull of a magnet is called ……………..

The strength of a magnetic field changes with …………….

The shape of the magnetic field doesn't depend on the shape of the magnet.