Year 9 Electrostatics

The smallest particle of matter is called..

• Particle

• element

• Atom

• ion

The positively charged particles in an atom

• Protons

• Neutrons

• Electrons

The nucleus of an atom is positive because of...

• Neutrons

• ions

• Protons

Atoms are overall neutral because

• they have same number of protons and neutrons

• they have same number of electrons and neutrons

• they have same number of electrons and protons

lightning is an example of electrostatic phenomena

• True

• False

Positive and negative charges will attract

• false

• true

Dust from the air is attracted by the static charge on a TV screen

• False

• true

In an atom, the negative electrons are held in place by the attraction of the positive nucleus.

• true

• false

The unit of charge is the

• Coulomb

• Ampere

• volt

A metal spoon, held in the bare hand, can be charged by rubbing with a dry cloth.

• false

• true