Chapter 17 Test
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Last updated about 5 years ago
50 questions
2
What are the tiny particles that make up matter?
What are the tiny particles that make up matter?
2
What is the region around a charged object where an electric force is present?
What is the region around a charged object where an electric force is present?
2
Which part of the atom has a positive charge?
Which part of the atom has a positive charge?
2
What is the loss of static electricity as charges move off an object?
What is the loss of static electricity as charges move off an object?
2
What does the size of a current depend upon?
What does the size of a current depend upon?
2
What is the part of the cell where charges enter or exit?
What is the part of the cell where charges enter or exit?
2
As resistance goes up, what happens to the current?
As resistance goes up, what happens to the current?
2
What is the voltage if the current is 4 A and the resistance is 10 Ohms?
What is the voltage if the current is 4 A and the resistance is 10 Ohms?
2
How much electrical energy does a 75 W light bulb use if it is on for 4 hours?
How much electrical energy does a 75 W light bulb use if it is on for 4 hours?
2
Circuits need three basic parts, an energy source, wires, and what else?
Circuits need three basic parts, an energy source, wires, and what else?
2
How many pathways are there for moving charges in a series circuit?
How many pathways are there for moving charges in a series circuit?
2
Why are protons and electrons attracted to each other?
Why are protons and electrons attracted to each other?
2
In the formula P = V x I, what does the I stand for?
In the formula P = V x I, what does the I stand for?
2
The size of an electric force depends upon which two things?
The size of an electric force depends upon which two things?
2
What generates electrical energy from chemical energy?
What generates electrical energy from chemical energy?
2
A video monitor draws 1.5 A at a voltage of 150 V. What is the power rating of the monitor?
A video monitor draws 1.5 A at a voltage of 150 V. What is the power rating of the monitor?
2
What is a switch that automatically opens if the current is too high?
What is a switch that automatically opens if the current is too high?
2
Which of these would lower the electrical resistance of a wire?
Which of these would lower the electrical resistance of a wire?
2
What happens if you rub a glass rod with a piece of silk and the rod becomes positively charged?
What happens if you rub a glass rod with a piece of silk and the rod becomes positively charged?
2
When you flip the switch on a flashlight, what is immediately set up?
When you flip the switch on a flashlight, what is immediately set up?
2
What is the rate at which charges pass a given point?
What is the rate at which charges pass a given point?
2
Who was George Ohm?
Who was George Ohm?
2
Light bulbs may be labeled "100 W" or "40 W". This describes
Light bulbs may be labeled "100 W" or "40 W". This describes
2
Good conductors have low
Good conductors have low
2
Which of the following is an insulator?
Which of the following is an insulator?
2
A ____________ is a device in a circuit that uses electrical energy to do work.
A ____________ is a device in a circuit that uses electrical energy to do work.
2
Metal cords are often covered in plastic and have metal prongs. This is because metal is a good conductor and plastic is a good _______________.
Metal cords are often covered in plastic and have metal prongs. This is because metal is a good conductor and plastic is a good _______________.
2
Another word for potential difference is __________________.
Another word for potential difference is __________________.
2
Thin wires have ________________ resistance than thick ones.
Thin wires have ________________ resistance than thick ones.
2
An object's resistance depends upon the object's material, thickness, length and ___________________.
An object's resistance depends upon the object's material, thickness, length and ___________________.
2
Electric circuits always form a ________________.
Electric circuits always form a ________________.
2
Plastic, glass, wood and air are examples of good ________________.
Plastic, glass, wood and air are examples of good ________________.
2
Electrons moving in a wire make up _____________________ and provide energy to the things that you use each day.
Electrons moving in a wire make up _____________________ and provide energy to the things that you use each day.
2
When the voltage is in volts and the current is in amperes, ______________ is expressed in watts.
When the voltage is in volts and the current is in amperes, ______________ is expressed in watts.
2
When your clothes come out of the dryer stuck together, they are full of ________________.
When your clothes come out of the dryer stuck together, they are full of ________________.
2
The opposition to the flow of electric charge is __________________.
The opposition to the flow of electric charge is __________________.
2
The part of the cell through which charges enter and exit is the ________________.
The part of the cell through which charges enter and exit is the ________________.
2
The law that states that like charges repel and opposite charges attract is called the _____________________.
The law that states that like charges repel and opposite charges attract is called the _____________________.
2
A device that converts thermal energy into electrical energy is called a(n) ___________________.
A device that converts thermal energy into electrical energy is called a(n) ___________________.
2
The three different parts of a circuit are wires, load and a(n) ______________.
The three different parts of a circuit are wires, load and a(n) ______________.
2
The higher this is, the lower the current.
The higher this is, the lower the current.
2
This device uses the temperature difference in wires to convert thermal energy into electrical energy.
This device uses the temperature difference in wires to convert thermal energy into electrical energy.
2
As this increases, so does the current.
As this increases, so does the current.
2
This method of charging happens when you rub a balloon on your hair.
This method of charging happens when you rub a balloon on your hair.
2
This is a material, like metal, that allows charges to move easily.
This is a material, like metal, that allows charges to move easily.
2
This is the region around a charged object where a force is exerted on other objects.
This is the region around a charged object where a force is exerted on other objects.
2
Clothes often stick together because of this.
Clothes often stick together because of this.
2
This is expressed in amps.
This is expressed in amps.
2
This is the force between two charged objects.
This is the force between two charged objects.
2
Lightning is an example of this.
Lightning is an example of this.