This process makes your cotton socks stick to your silk shirt.
What is static electricity
100
These tiny particles are unable to be seen with the naked eye, but through a powerful microscope are able to be spotted. What are they?
What is atoms.
100
Name 2 important sections to note when completing a Scientific Method Experiment.
What is QUESTION, RESEARCH, OBSERVATION, HYPOTHESIS, EXPERIMENT, MATERIALS, PROCEDURE, ANALYSIS, CONCLUSION.
100
New electrons are not created when an atom gains electrons. Explain this process.
What is an electric charge results when one atom loses an electron to another. Both atoms become charged, but the total number of electrons does not change. Electrons do not appear or disappear-they just move from one place to another.
100
Explain static electricity.
What is the build up of electric charges on two objects that have not become separated from each other. *Answers may vary*
200
This is where electricity can be found.
What is everywhere.
200
Atoms consist of 3 parts. Name those parts.
What is electrons, neutrons, protons.
200
Explain why your hair sticks up when you rub a balloon on your head.
What is the process of static electricity. While rubbing the two surfaces together, electrons are exchanged. Your hair becomes (positively/negatively) charged and the surface of the balloon becomes (positively/ negatively) charged. OPPOSITES ATTRACT. The two objects "stick together" because they are oppositely charged and are attracted to one another.
200
An atom has 4 protons and 6 electrons. Is it positively charged or negatively charged? Why?
What is the atom is negatively charged because electrons are negative. More electrons than protons cause the atom to be negatively charged.
200
How does rubbing build a charge?
What is rubbing causes electrons to transfer from one surface to another.
300
True or False: Humans can produce electric charges with their bodies.
What is true. The brain alone can produce a 10 watt charge!
300
This is the centre of the atom; made up of neutrons and protons.
What is the nucleus.
300
Why is it important to be as detailed as possible when recording observations during an experiment?
What is *answers may vary*
300
An atom has 4 protons and 2 electrons. Is it positively charged or negatively charged? Why?
What is the atom is positively charged because protons are positive. More protons than electrons cause the atom to be positively charged.
300
Name the 3 rules of electricity.
What is 1. Opposite Charges Attract
2. Like Charges Repel
3. Charged Objects Attract Uncharged Objects
400
Name 2 ways that electricity shows up (or reveals itself) around us.
What is flow steadily and jump in sharp bursts.
400
What is an atom mostly made up of?
What is empty space. If the nucleus of an atom were the size of a grain of salt in the middle of a football field, the electrons would be at the very edges of that field.
400
Why is it good when an experiment "fails" or does not go like you thought it would?
What is because you learn from the process and it makes you think about other angles or possibilities or questions that you may not have thought of to begin with. THAT'S SCIENCE!
400
An atom has 15 protons and 15 electrons. What state is it in?
What is neutral. When an atom is even in it's protons and electrons it is said to be neutral or not charged. It is only when there is an imbalance of particles that an atom becomes charged.
400
Explain a discharge of electricity
What is when two oppositely charged objects are close together, electrons may jump through the air between them to balance the charge. This discharge of electricity causes static electric shock.
500
Fill in the blank: Everything is made up of ____________.
What is atoms.
500
True or false: Having more electrons means the atom has more of a total electric charge.
What is false. As long as the number of negative charges from the electrons is equal to the number of positive charges in the nucleus, the atom as a whole will be uncharged.
500
Why does the balloon not move when you walk past it (the first time) but moves after you rub it with a wool cloth?
What is the first time there was not transference of electrons. The wool cloth allowed the balloon to be charged after rubbing both surfaces together.
500
When scientists study electricity, they cannot see individual electrons moving from atom to atom with the naked eye. What do scientists look for instead?
What is they study the overall effects of the movement of electrons from one object to another or within an object.
500
Who is the American who added to our knowledge of electricity because of his experiments with lightning?