Fast moving particles which emit radioactive substances
A substance from which chromosomes are made
A positively or negatively charged particle formed when an atom or group of atoms lose or gain electrons
Pregunta 2
Pregunta
Which two particles are found in the nucleus of any atom?
Respuesta
Proton
Neutron
Electron
Pregunta 3
Pregunta
The mass of an electron is about one two-thousandth of the mass of a proton or a neutron
Respuesta
True
False
Pregunta 4
Pregunta
What are electrical conductors?
Respuesta
Materials that allow electricity to flow through them easily
Materials that do not allow electricity to flow through them
Materials that do not make a difference to a circuit
Pregunta 5
Pregunta
What is an example of a good electrical conductor?
Respuesta
Metal
Plastic
Wood
Cotton
Pregunta 6
Pregunta
A good example of an insulator is plastic
Respuesta
True
False
Pregunta 7
Pregunta
An insulator cannot become electrically charged
Respuesta
True
False
Pregunta 8
Pregunta
What has to happen for static electricity to be produced?
Respuesta
Electrons transfer from one non-electrically charged material to another non-electrically charged material
Protons are removed from the nucleus of a material
Neutrons are added to the outer electron ring of a material
Pregunta 9
Pregunta
When static electricity is being made, what kind of charge does the material receiving electrons now have?
Respuesta
Positive charge
Negative charge
No charge
Pregunta 10
Pregunta
If you rubbed a Perspex rod with a cloth, it loses electrons. What charge does it become?
Respuesta
Positively charged
Negatively charged
No charge
Pregunta 11
Pregunta
What kind of materials repel each other?
Respuesta
Two uncharged materials
Two materials with the same type of charge
Two materials with a different type of charge
Pregunta 12
Pregunta
What kind of materials repel each other?
Respuesta
Two uncharged materials
Two materials with the same type of charge
Two materials with a different type of charge
Pregunta 13
Pregunta
What would be the difference in attraction with these two examples? If a charged ebonite rod was placed next to a charged Perspex rod and if a charged Perspex rod was placed next to another charged Perspex rod
Respuesta
The charged ebonite rod and the charged Perspex rod would attract and the two charged Perspex rods would repel
The charged ebonite rod and the charged Perspex rod would repel and the two charged Perspex rods would attract
Both of the examples would repel each other
Both examples would attract each other
Pregunta 14
Pregunta
Which of the following all involve the movement of electrons?