If you have an object plugged into a 120 V outlet and 2 amps flow through it continuously, this is amount of power used.
What is 240V?
100
An atom is made up of these three major particles.
What is electron, neutrons, and protons?
200
Like (same) charges do this to each other
What is repel?
200
Describe how current is measured. DAILY DOUBLE.
What is in amps (a certain amount of charge that passes by each second)?
200
If you increase the number of lightbulbs in a series circuit, describe what happens to their brightness.
What is adding more lightbulbs increases resistance, which decreases current, making the lightbulbs dimmer?
200
If a 9V battery is connected to a wire that produces 1.5 ohms of resistance, this will be the current that flows.
What is 6 amps?
200
The charges of each of these three particles is..
What is proton (+), neutron (n/a), electron (-)?
300
Describe why you don't need to have charged objects touch each other to have them interact
What is the presence of an electric field?
300
Explain what voltage is and what increasing it or decreasing it in a circuit will do.
What is electrical potential energy? Increasing or decreasing it will either increase or decrease the total amount of energy present within the circuit.
300
Explain why adding lightbulbs in a parallel circuit does NOT affect the brightness of the bulbs. DAILY DOUBLE.
What is by adding more paths, you are not increasing overall resistance, so current stays the same which keeps the bulbs around the same brightness.
300
If you have a simple circuit with one 1.5V battery, a wire that provides 0.5 ohms of resistance, and a current of 3 amps, describe what the current becomes if you add another battery to the circuit. DAILY DOUBLE.
What is 6 amps?
300
Explain why dropping an electrical appliance in a bathtub is very dangerous.
What is water is very good conductor, so when an appliance plugged in is dropped in, the electrons flow into the water and use your body to complete a circuit?
400
Describe what will happen and why when you rub a balloon on your hair, then bring it near a positively charged balloon.
What is they will attract because they carry opposite charges. Rubbing a balloon on your head puts electrons on the balloon.
400
Explain what resistance is and how it's measured.
What is how easy it is for charge to flow through a circuit? Measured in ohms.
400
If suddenly the current of a circuit increases and the resistance has not change, what must have happened? Give one real world example of when this can happen.
What is an increase in voltage? Power surge due to a lightning strike.
400
If you have a 9 V battery connected in a simple circuit with a 2 ohm resisting wire and a current of 4.5 amps, if you want the current to increase to 5 amps, what resistance wire will you have to use?
What is 1.8 ohm wire?
400
Explain how a lightning rod works.
What is a grounded wire is put above the building and induces charge from clouds, becoming positively charged. Lightning then strikes it and is transferred safely into the ground?
500
Describe in detail what happens to cause lightning.
What is I don't feel like writing it all down. I'll explain.
500
Describe in detail how batteries power everyday objects.
What is a chemical reaction within a battery separates positive and negative charges and they can flow through a closed circuit equal to the voltage of the battery?
500
Describe why Christmas lights wired in a parallel circuit will stay on even if one burns out.
What is because there are multiple paths, one burned light will not open the circuit. The current will pass by and continue to flow to the other lights.
500
If you pay $0.12 per KW/hr, and use a 750 W microwave for 12 hours in one month, this is the total cost of using it. Round to the nearest hundredth.
What is $1.01?
500
Describe how a circuit breaker/fuse works and why it's important.
What is when a power surge (too many electrons) enter the device, it is designed to open the circuit and prevent the surge from entering and destroying your appliances?