Middle School Physical Science : Energy in Chemical Reactions
Study concepts, example questions & explanations for Middle School Physical Science
All Middle School Physical Science Resources
Example Questions
Example Question #11 : Energy In Chemical Reactions
What is a conductor?
A conductor is a substance that makes electrons move in a line like a train
A conductor is a substance that does NOT transfer electric or heat energy easily.
A conductor is a substance that transfers electric or heat energy easily.
A conductor is a substance that transfers motion easily
A conductor is a substance that transfers electric or heat energy easily.
A conductor is a substance that transfers electric or heat energy easily.
Some types of matter transfer energy more easily than others. These substances are called “conductors.” An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage. Conductivity, in general, is the capacity to transmit something, such as electricity or heat. Some examples of conductors are copper, steel, gold, aluminum, and brass. If a substance does NOT transfer energy efficiently, it is called an insulator. Some common insulators are: Glass, Air, Plastic, Rubber, Porcelain, and Wood.
Example Question #12 : Energy In Chemical Reactions
Which of these is an example of a conductor?
grass
mud
water
wood
water
The answer is water because electric and heat energy move easily through it.
Some types of matter transfer energy more easily than others. These substances are called “conductors.” An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage. Conductivity, in general, is the capacity to transmit something, such as electricity or heat. Some examples of conductors are copper, steel, gold, aluminum, and brass. If a substance does NOT transfer energy efficiently, it is called an insulator. Some common insulators are: Glass, Air, Plastic, Rubber, Porcelain, and Wood.
Example Question #13 : Energy In Chemical Reactions
Which of these is NOT an example of a conductor?
steel
glass
iron
copper
glass
The answer is glass.
Some types of matter transfer energy more easily than others. These substances are called “conductors.” An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage. Conductivity, in general, is the capacity to transmit something, such as electricity or heat. Some examples of conductors are copper, steel, gold, aluminum, and brass. If a substance does NOT transfer energy efficiently, it is called an insulator. Some common insulators are: Glass, Air, Plastic, Rubber, Porcelain, and Wood.
Example Question #14 : Energy In Chemical Reactions
The image shows a plug that goes into an electrical outlet. Which best describes the plug?
the whole device is an insulator
the whole device is a conductor
the surrounding rubber is an insulator and the metal prong is a conductor.
the surrounding rubber is a conductor and the metal prong is an insulator.
the surrounding rubber is an insulator and the metal prong is a conductor.
The answer is "the surrounding rubber is an insulator and the plug is a conductor."
Some types of matter transfer energy more easily than others. These substances are called “conductors.” An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage. Conductivity, in general, is the capacity to transmit something, such as electricity or heat. Some examples of conductors are copper, steel, gold, aluminum, and brass. If a substance does NOT transfer energy efficiently, it is called an insulator. Some common insulators are: Glass, Air, Plastic, Rubber, Porcelain, and Wood.
Example Question #15 : Energy In Chemical Reactions
What is an insulator?
An insulator is a substance that is an energy source for another substance.
An insulator is a substance that readily transfers energy.
An insulator is a substance that is a magnet and an energy source.
An insulator is a substance that does not readily transfer energy.
An insulator is a substance that does not readily transfer energy.
An insulator is a substance that does not readily transfer energy.
Some types of matter transfer energy more easily than others. These substances are called “conductors.” An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage. Conductivity, in general, is the capacity to transmit something, such as electricity or heat. Some examples of conductors are copper, steel, gold, aluminum, and brass. If a substance does NOT transfer energy efficiently, it is called an insulator. Some common insulators are: Glass, Air, Plastic, Rubber, Porcelain, and Wood.
Example Question #16 : Energy In Chemical Reactions
Jamal wants to make an electrical circuit, but he only has a power source and two wires that are not connected. Which of the following must Jamal also have to make an electrical circuit?
a rubber stopper
an insulator
a battery
a conductor
a conductor
Jamal would also need an electrical conductor to complete the circuit
Some types of matter transfer energy more easily than others. These substances are called “conductors.” An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage. Conductivity, in general, is the capacity to transmit something, such as electricity or heat. Some examples of conductors are copper, steel, gold, aluminum, and brass. If a substance does NOT transfer energy efficiently, it is called an insulator. Some common insulators are: Glass, Air, Plastic, Rubber, Porcelain, and Wood.
Example Question #17 : Energy In Chemical Reactions
Which of the following items would NOT complete the circuit in combination with the items pictured?
an iron nail
wood
glass
wool
wool
The answer is "wool"
Some types of matter transfer energy more easily than others. These substances are called “conductors.” An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage. Conductivity, in general, is the capacity to transmit something, such as electricity or heat. Some examples of conductors are copper, steel, gold, aluminum, and brass. If a substance does NOT transfer energy efficiently, it is called an insulator. Some common insulators are: Glass, Air, Plastic, Rubber, Porcelain, and Wood.
Example Question #18 : Energy In Chemical Reactions
Which of these items is needed to make the light bulb light up?
a conductor
another power source
a piece of wood
an insulator
a conductor
The answer is "a conductor."
Some types of matter transfer energy more easily than others. These substances are called “conductors.” An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage. Conductivity, in general, is the capacity to transmit something, such as electricity or heat. Some examples of conductors are copper, steel, gold, aluminum, and brass. If a substance does NOT transfer energy efficiently, it is called an insulator. Some common insulators are: Glass, Air, Plastic, Rubber, Porcelain, and Wood.
Example Question #19 : Energy In Chemical Reactions
Which of these would complete the electrical circuit?
plastic
an iron nail
air
a piece of glass
an iron nail
The answer is an iron nail.
Some types of matter transfer energy more easily than others. These substances are called “conductors.” An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage. Conductivity, in general, is the capacity to transmit something, such as electricity or heat. Some examples of conductors are copper, steel, gold, aluminum, and brass. If a substance does NOT transfer energy efficiently, it is called an insulator. Some common insulators are: Glass, Air, Plastic, Rubber, Porcelain, and Wood.
Example Question #20 : Energy In Chemical Reactions
The image shows electrons moving freely through a copper wire. Based on this image, a copper wire is best described as:
an insulator
a resistor
a magnet
a conductor
a conductor
The answer is "a conductor."
Some types of matter transfer energy more easily than others. These substances are called “conductors.” An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage. Conductivity, in general, is the capacity to transmit something, such as electricity or heat. Some examples of conductors are copper, steel, gold, aluminum, and brass. If a substance does NOT transfer energy efficiently, it is called an insulator. Some common insulators are: Glass, Air, Plastic, Rubber, Porcelain, and Wood.
All Middle School Physical Science Resources
