How does Electricity play a role in my life?
There are two types of electrical energy:
1) Static Electricity - this is the build up of electrical charges on an object.
2) Current Electricity - this is the flow of
electrical charges, usually electrons,
through an object
This task will be marked for its design, craftsmanship and your ability to explain how the electric circuit is connected.
3.8) Static Electricity Homework:
1) Describe the relationship between the number of protons and electrons on:
a) a neutral object
b) a positively charged object
c) a negatively charged object.
2) Define the following terms:
a) neutral
b) electrostatic force
c) induced charge
d) electric field
e) static electricity
3) Copy these statements and modify any that are incorrect:
a) A positively charged object contains only positive charges
b) A neutral object contains no charges
c) An object may become charged only by rubbing electrons off it.
4) Calculate whether the following particles would be neutral, positively charged or negatively charged:
a) 5 protons, 5 neutrons and 5 electrons
b) 15 protons, 20 neutrons and 10 electrons
c) 34 protons, 27 neutrons and 34 electrons
5) If you tear a plastic shopping bag and try to put it to pieces in the bin, they may stick to your fingers. Explain why.
6) Propose a reason why:
a) cleaning and polishing a mirror might actually make it dustier
b) Static electricity demonstrations using the Van de Graaf generator work better on dry days than on humid days.
7) Animals such as sharks, echidnas and platypuses can detect the electric fields produced in the muscles of other animals. Propose ways in which they can use this ability.
1) Describe the relationship between the number of protons and electrons on:
a) a neutral object
b) a positively charged object
c) a negatively charged object.
2) Define the following terms:
a) neutral
b) electrostatic force
c) induced charge
d) electric field
e) static electricity
3) Copy these statements and modify any that are incorrect:
a) A positively charged object contains only positive charges
b) A neutral object contains no charges
c) An object may become charged only by rubbing electrons off it.
4) Calculate whether the following particles would be neutral, positively charged or negatively charged:
a) 5 protons, 5 neutrons and 5 electrons
b) 15 protons, 20 neutrons and 10 electrons
c) 34 protons, 27 neutrons and 34 electrons
5) If you tear a plastic shopping bag and try to put it to pieces in the bin, they may stick to your fingers. Explain why.
6) Propose a reason why:
a) cleaning and polishing a mirror might actually make it dustier
b) Static electricity demonstrations using the Van de Graaf generator work better on dry days than on humid days.
7) Animals such as sharks, echidnas and platypuses can detect the electric fields produced in the muscles of other animals. Propose ways in which they can use this ability.