GCSE Physics - Chapter 4: Electric Circuits

What is the charge on an electron?

• Positive

• Negative

• Zero

• Depends on atom

What happens when a perspex rod is rubbed with a dry cloth?

• Gains electrons and becomes negative

• Loses electrons and becomes positive

• Remains neutral

• Becomes radioactive

What kind of force exists between two objects with the same charge?

• A) Attraction

• B) Repulsion

• C) No force

• D) Gravitational

Which subatomic particle moves to create an ion?

• Proton

• Neutron

• Electron

• Nucleus

If a polythene rod is rubbed with cloth, it becomes:

• Negative

• Positive

• Neutral

• Uncharged

Electric field lines around a positive sphere point:

• Toward the center

• Away from the center

• Form a circle

Which statement is true of non-contact forces?

• Require physical contact

• Act at a distance

• Only work underwater

• Depend on temperature

When two oppositely charged objects are brought near, what happens?

• They repel

• They attract

• No effect

• They neutralize

An atom that gains electrons becomes:

• A) A cation

• B) A positive ion

• C) A negative ion

• D) An isotope

Electric field strength is greater when:

• A) Charges are closer together

• B) Charges are far apart

• C) Temperature increases

• D) Object is insulated