Proportions & Scale Factors Quick Check 4 of 54 of 5 Items Question Use the image to answer the question. Scale: 1 box = 5 feet Reproduce the scale drawing of Tomas’s front yard so that it has a scale of 1 box = 10 feet. Which shows the new scale drawing? (1 point) Responses Scale: 1 box = 5 feet Image with alt text: A grid is shown with a rectangle drawn on it. The rectangle is 4 units long and 3 units wide, labeled with 4 and 3 respectively. Scale: 1 box = 5 feet Scale: 1 box = 5 feet Image with alt text: A grid is shown with a rectangle drawn on it. The rectangle is 6 units long and 3 units wide, labeled with 6 and 3 respectively. Scale: 1 box = 5 feet Scale: 1 box = 5 feet Image with alt text: A grid is shown with a rectangle drawn on it. The rectangle is 16 units long and 12 units wide, labeled with 16 and 12 respectively. Scale: 1 box = 5 feet Scale: 1 box = 5 feet
45 answers
Image with alt text: A grid is shown with a rectangle drawn on it. The rectangle is 8 units long and 6 units wide, labeled with 8 and 6 respectively. Scale: 1 box = 5 feet
Use the image to answer the question.%0D%0A%0D%0A%0D%0A%0D%0AScale factor: 1 box = 6 inches%0D%0A%0D%0AMaisie needs to convert this scale drawing from a scale factor of 1 box = 6 inches to a scale factor of 1 box = 12 inches. The length in the scale drawing shown is 10 boxes. What will be the length of the boxes in the new drawing?%0D%0A%0D%0A(1 point)%0D%0AResponses%0D%0A%0D%0A12%0D%0A12%0D%0A%0D%0A1%0D%0A1%0D%0A%0D%0A20%0D%0A20%0D%0A%0D%0A5
To convert the scale drawing from a scale factor of 1 box = 6 inches to a scale factor of 1 box = 12 inches, we need to determine the new length of the boxes in the new drawing.
The given length in the original scale drawing is 10 boxes. As the original scale factor is 1 box = 6 inches, the actual length would be 10 * 6 = 60 inches.
Now, we want to find the length of the boxes in the new drawing, where the scale factor is 1 box = 12 inches. To do this, we need to divide the actual length (60 inches) by the new scale factor (12 inches).
60 inches / 12 inches = 5 boxes
Therefore, the length of the boxes in the new drawing will be 5.
The correct response is:
5
The given length in the original scale drawing is 10 boxes. As the original scale factor is 1 box = 6 inches, the actual length would be 10 * 6 = 60 inches.
Now, we want to find the length of the boxes in the new drawing, where the scale factor is 1 box = 12 inches. To do this, we need to divide the actual length (60 inches) by the new scale factor (12 inches).
60 inches / 12 inches = 5 boxes
Therefore, the length of the boxes in the new drawing will be 5.
The correct response is:
5
In order for electric charge to flow, there must be a difference in:
current.
electric potential.
resistance.
static electricity.
current.
electric potential.
resistance.
static electricity.
electric potential.
Which factors affect the flow of electric charge? Select two options.
voltage
ampere
ohm
resistance
volt
voltage
ampere
ohm
resistance
volt
The two factors that affect the flow of electric charge are:
1. Voltage
2. Resistance
1. Voltage
2. Resistance
What is the effect on an electric current when the voltage is increased?
An increase in voltage causes the flow of electric current to
.
An increase in voltage causes the flow of electric current to
.
An increase in voltage causes the flow of electric current to increase.
Which materials are good insulators? Select three options.
glass
paper
gold
plastic
silver
glass
paper
gold
plastic
silver
The three materials that are good insulators are:
- Glass
- Paper
- Plastic
- Glass
- Paper
- Plastic
Use the drop-down menu to complete the sentence.
Resistance is measured in units called
.
Resistance is measured in units called
.
Resistance is measured in units called ohms.
Which factors affect the resistance of a material? Select three options.
length
current
thickness
temperature
voltage
length
current
thickness
temperature
voltage
To clarify, resistance is affected by three factors:
1. Length: The longer the material, the higher the resistance.
2. Thickness: Increasing the thickness of a material decreases its resistance.
3. Temperature: An increase in temperature usually increases the resistance of a material.
1. Length: The longer the material, the higher the resistance.
2. Thickness: Increasing the thickness of a material decreases its resistance.
3. Temperature: An increase in temperature usually increases the resistance of a material.
Sara read in a book that in 1800, the Italian physicist Alessandro Volta observed that two metals connected by a conducting liquid produced a continuous transfer of electrons. This phenomenon was different from the rapid static discharge observed by Benjamin Franklin.
Sara’s book was describing Volta’s observation of:
resistance.
static electricity.
electric current.
superconductivity.
Sara’s book was describing Volta’s observation of:
resistance.
static electricity.
electric current.
superconductivity.
Sara's book was describing Volta's observation of electric current.
Which sequence lists types of materials in order from least conductive to most conductive?
superconductor conductor semiconductor insulator
insulator conductor semiconductor superconductor
conductor superconductor semiconductor insulator
insulator semiconductor conductor superconductor
superconductor conductor semiconductor insulator
insulator conductor semiconductor superconductor
conductor superconductor semiconductor insulator
insulator semiconductor conductor superconductor
The correct sequence that lists types of materials in order from least conductive to most conductive is:
insulator - semiconductor - conductor - superconductor
insulator - semiconductor - conductor - superconductor
The basic unit of electric current is the:
ohm.
ampere.
conductivity.
volt.
ohm.
ampere.
conductivity.
volt.
The basic unit of electric current is the ampere.
Use the drop-down menu to complete the paragraph.
Tungsten wire is used as the filament in light bulbs. It glows white-hot as current passes through it.
Tungsten is used in light bulbs because its high
converts electric energy into light and heat.
Tungsten wire is used as the filament in light bulbs. It glows white-hot as current passes through it.
Tungsten is used in light bulbs because its high
converts electric energy into light and heat.
Tungsten is used in light bulbs because its high resistance converts electric energy into light and heat.
Anton created a chart listing different types of materials.
A 2-column table with 4 rows titled Types of Materials. The first column labeled Type has entries conductor, insulator, semiconductor, superconductor. The second column labeled Example has entries silver, X, Y, mercury.
Which best complete the chart?
X: copper
Y: glass
X: rubber
Y: copper
X: paper
Y: silicon
X: silicon
Y: glass
A 2-column table with 4 rows titled Types of Materials. The first column labeled Type has entries conductor, insulator, semiconductor, superconductor. The second column labeled Example has entries silver, X, Y, mercury.
Which best complete the chart?
X: copper
Y: glass
X: rubber
Y: copper
X: paper
Y: silicon
X: silicon
Y: glass
Based on the given information, the best completion for the chart would be:
X: copper
Y: glass
X: copper
Y: glass
Look at the diagram showing resistance and flow of electrons.
A top box labeled X contains 2 circles with plus signs and 2 circles with minus signs. A bottom box labeled Y contains 4 circles with minus signs and 8 circles with plus signs. An arrow Z runs from the bottom box to the top box.
Which labels best complete the diagram?
X: High resistance
Y: Low resistance
Z: Flow of electrons
X: Low resistance
Y: Flow of electrons
Z: High resistance
X: Flow of electrons
Y: High potential energy
Z: Low potential energy
X: Low potential energy
Y: High potential energy
Z: Flow of electrons
A top box labeled X contains 2 circles with plus signs and 2 circles with minus signs. A bottom box labeled Y contains 4 circles with minus signs and 8 circles with plus signs. An arrow Z runs from the bottom box to the top box.
Which labels best complete the diagram?
X: High resistance
Y: Low resistance
Z: Flow of electrons
X: Low resistance
Y: Flow of electrons
Z: High resistance
X: Flow of electrons
Y: High potential energy
Z: Low potential energy
X: Low potential energy
Y: High potential energy
Z: Flow of electrons
Based on the given information, the best completion for the diagram would be:
X: High resistance
Y: Low resistance
Z: Flow of electrons
X: High resistance
Y: Low resistance
Z: Flow of electrons
Which two wire properties would provide the greatest resistance to the flow of a current?
short, thin
long, thin
hot, thick
cool, thick
short, thin
long, thin
hot, thick
cool, thick
The two wire properties that would provide the greatest resistance to the flow of a current are:
1. long wire: An increase in wire length increases the resistance.
2. thin wire: A decrease in wire thickness (larger gauge number) increases the resistance.
1. long wire: An increase in wire length increases the resistance.
2. thin wire: A decrease in wire thickness (larger gauge number) increases the resistance.
In the diagram, the arrow shows the movement of electric charges through a wire connected to a battery.
A battery with an arrow at its top running from left to right. A black line connects the right end of the battery to the left end by making a series of straight lines to form a rectangular box with the battery as part of the bottom side.
What causes the electric charges to flow from one end of the battery to the other?
a balance in electric potential
a balance in resistance
a difference in electric potential
a difference in resistance
A battery with an arrow at its top running from left to right. A black line connects the right end of the battery to the left end by making a series of straight lines to form a rectangular box with the battery as part of the bottom side.
What causes the electric charges to flow from one end of the battery to the other?
a balance in electric potential
a balance in resistance
a difference in electric potential
a difference in resistance
The electric charges flow from one end of the battery to the other because of a difference in electric potential.
Which lists types of materials from most conductive to least conductive?
insulator, semiconductor, conductor, superconductor
superconductor, conductor, semiconductor, insulator
conductor, insulator, semiconductor, superconductor
semiconductor, conductor, superconductor, insulator
insulator, semiconductor, conductor, superconductor
superconductor, conductor, semiconductor, insulator
conductor, insulator, semiconductor, superconductor
semiconductor, conductor, superconductor, insulator
The correct list that orders types of materials from most conductive to least conductive is:
conductor, semiconductor, insulator, superconductor
conductor, semiconductor, insulator, superconductor
Which most likely has the greatest conductivity?
a warm plastic rod
a cool rubber tube
a cool silver strip
a warm copper wire
a warm plastic rod
a cool rubber tube
a cool silver strip
a warm copper wire
The warm copper wire most likely has the greatest conductivity.
Why is copper used for most electrical wiring?
It has high voltage.
It has low voltage.
It is a good conductor.
It is a good insulator.
It has high voltage.
It has low voltage.
It is a good conductor.
It is a good insulator.
Copper is used for most electrical wiring because it is a good conductor of electricity.
Superconducting magnets are used in machines called particle accelerators. These machines rely on zero resistance in order to function properly.
How are the magnets able to have zero resistance?
They are heated to extremely high temperatures.
They are cooled to extremely low temperatures.
They are made to be very thick.
They are made to be very thin.
How are the magnets able to have zero resistance?
They are heated to extremely high temperatures.
They are cooled to extremely low temperatures.
They are made to be very thick.
They are made to be very thin.
The superconducting magnets in particle accelerators are able to have zero resistance because they are cooled to extremely low temperatures.
Measurements of two electric currents are shown in the chart.
A 3-column table with 2 rows titled Electric Currents. The first column labeled Current has entries X, Y. The second column labeled Volts has entries 1.5, 9. The third column labeled Amperes has entries 7.8, 0.5.
Which best compares the two currents?
Current X has a greater potential difference, and the charges flow at a slower rate.
Current Y has a greater potential difference, and the charges flow at a slower rate.
Current X has a greater potential difference, and the charges flow at a faster rate.
Current Y has a greater potential difference, and the charges flow at a faster rate.
A 3-column table with 2 rows titled Electric Currents. The first column labeled Current has entries X, Y. The second column labeled Volts has entries 1.5, 9. The third column labeled Amperes has entries 7.8, 0.5.
Which best compares the two currents?
Current X has a greater potential difference, and the charges flow at a slower rate.
Current Y has a greater potential difference, and the charges flow at a slower rate.
Current X has a greater potential difference, and the charges flow at a faster rate.
Current Y has a greater potential difference, and the charges flow at a faster rate.
Based on the given information, the best comparison of the two currents would be:
Current Y has a greater potential difference (volts), and the charges flow at a slower rate (amperes).
Current Y has a greater potential difference (volts), and the charges flow at a slower rate (amperes).
The chart shows the voltage of four electric currents.
A 2-column table with 2 rows titled Voltage of Currents. The first column labeled Current has entries W, X, Y, Z. The second column labeled Volts (volts) has entries 9.0, 1.5, 3.0, 4.5.
Which is best supported by the data in the chart?
Current W flows at a higher rate than Current Z.
Current Y flows at a lower rate than Current X.
Current X has a lower potential difference than Current Y.
Current Z has a greater potential difference than Current W.
A 2-column table with 2 rows titled Voltage of Currents. The first column labeled Current has entries W, X, Y, Z. The second column labeled Volts (volts) has entries 9.0, 1.5, 3.0, 4.5.
Which is best supported by the data in the chart?
Current W flows at a higher rate than Current Z.
Current Y flows at a lower rate than Current X.
Current X has a lower potential difference than Current Y.
Current Z has a greater potential difference than Current W.
Based on the given data in the chart, the statement that is best supported is:
Current X has a lower potential difference (volts) than Current Y.
Current X has a lower potential difference (volts) than Current Y.
Use the drop-down menus to complete the statements.
An increase in voltage results in
in current.
An increase in resistance results in
in current.
An increase in voltage results in
in current.
An increase in resistance results in
in current.
An increase in voltage results in an increase in current.
An increase in resistance results in a decrease in current.
An increase in resistance results in a decrease in current.
5 answers