N.SCIENCE 6º UNIT 6 TEST: ELECTRICITY AND MAGNETISM

An electrically neutral object has the same number of positive and negative charges.

• True

• False

Positive charges can move from one object to another.

• True

• False

When an object loses negative charges, it becomes positively charged.

• True

• False

An object with more negative charges than positive ones is positively charged.

• True

• False

Objects with opposite charges attract. They pull towards each other.

• True

• False

Objects with like charges repel. They push away from each other.

• True

• False

Electricity flows from an energy source, for example _______

• a wire

• a battery

• a cable

• a switch

The electric current flows along______

• a wire

• a battery

• a motor

• a switch

The ______ opens and closes the circuit.

• wire

• battery

• motor

• switch

When the switch is on, the circuit is closed. Then the electric current can flow without interruption to reach a device. A device can be a _________, a motor or another electrical appliance.

• wire

• light bulb

• motor

• switch