Oran wants to model the behavior of Earth’s magnetic field when Earth’s magnetic south is near Earth’s geographic north using a ball, a bar magnet, and a compass. He designates the top of the ball as Earth’s geographic north.
Which model in the table would most likely represent Oran’s model?
Model 1
Model 2
Model 3
Model 4
The table to which you refer is not provided, so it is not possible to determine which model most likely represents Oran's model.
Ill just guess that other question but hjasjkdfANYWAYS
What does voltage describe?
how fast current can flow
how much current can flow
how much a material resists electrical flow
how fast a material conducts electrical flow
Voltage describes the potential difference between two points in an electrical circuit. It represents the amount of electrical potential energy per unit charge available to move the electric charges between the two points. Therefore, voltage does not directly describe the speed or rate of current flow or the resistance of a material.
I think its B but NEXT QUESTIONN
Based on illustrations of magnetic field lines, where could an object be placed so it would not experience a magnetic force?
halfway between the like poles of two magnets, because the field lines bend away and do not enter this area
halfway between the opposite poles of two magnets, because the field lines are the closest together
above the middle of a bar magnet, because the magnetic field lines are only found around the sides of the magnet
above a pole of a bar magnet, because the magnetic field lines either go in or go out at the end
The correct answer is "above the middle of a bar magnet, because the magnetic field lines are only found around the sides of the magnet." In this area, the magnetic field lines are not present, so the object placed there would not experience a magnetic force.
Linh builds a circuit from the diagram shown.
A rectangular box of lines with the long side vertical and an extra horizontal line about 2 thirds of the way up. The top line has a circle with an X in it labeled 1. The right side from top has a top circle 2 with an X in it then the connection with the extra line then a bottom circle 4 with an X in it. The extra line has a circle 3 with an X in it. The left side has a stack of horizontal lines near its bottom, which are, from top very short, short, very short, short.
If Linh removes bulb 3, which bulbs will remain lit?
1 only
1 and 2 only
4 only
1, 2, and 4
Based on the given diagram, if Linh removes bulb 3, bulbs 1 and 4 will remain lit. The circuit path for bulb 1 is not interrupted by the removal of bulb 3. Similarly, the circuit path for bulb 4 is also unaffected. However, the removal of bulb 3 will remove the connection between bulbs 2 and 4, so bulb 2 will not remain lit. Therefore, the correct answer is "1 and 4 only."
That isnt an option??.. but ill guess so the other question NOWW IS
A circuit has a current of 1.2 A. If the voltage decreases to one-third of its original amount while the resistance remains constant, what will be the resulting current?
0.3 A
0.4 A
1.2 A
3.6 A
According to Ohm's Law (V = IR), we can determine that the current (I) is equal to the voltage (V) divided by the resistance (R). If the voltage decreases to one-third of its original amount while the resistance remains constant, the current will also decrease proportionally.
Given that the current is initially 1.2 A, if the voltage decreases to one-third, the resulting current will also decrease to one-third of 1.2 A.
Therefore, the resulting current will be 0.4 A.
The north pole of a bar magnet is moved close to the north pole of a second bar magnet. What prediction best describes how the first magnet responds when it is released?
It will move toward the second magnet because like poles repel.
It will move toward the second magnet because like poles attract.
It will move away from the second magnet because like poles repel.
It will move away from the second magnet because like poles attract.
The first magnet will move away from the second magnet because like poles repel. When both magnets have their north poles facing each other, they have the same polarity (both are positive). According to the principle of like poles repelling each other, the first magnet will move away from the second magnet. Therefore, the correct prediction is "It will move away from the second magnet because like poles repel."
A circuit has a current of 2 A. If the resistance in the circuit decreases to one-fourth of its original amount while the voltage remains constant, what will be the resulting current?
0.5 A
2 A
4 A
8 A
According to Ohm's Law (V = IR), we can determine that the current (I) is equal to the voltage (V) divided by the resistance (R). If the resistance decreases to one-fourth of its original amount while the voltage remains constant, the current will increase proportionally.
Given that the current is initially 2 A, if the resistance decreases to one-fourth, the resulting current will increase to four times the initial value.
Therefore, the resulting current will be 8 A.
According to Ohm’s law, which combination of units is the same as the unit for voltage?
ohm ÷ ampere
ampere × ohm
ohm + ampere
ampere ÷ ohm
According to Ohm's Law, the unit for voltage is equal to the unit for current (ampere) multiplied by the unit for resistance (ohm). Therefore, the correct combination of units that is the same as the unit for voltage is "ampere × ohm".
A positively charged object is placed to the left of a negatively charged object. Which best describes how the positively charged object will move?
to the left, in the direction of the electric field lines
to the right, in the direction of the electric field lines
up in the direction that the field lines bend away
down in the direction that the field lines bend away
When a positively charged object is placed to the left of a negatively charged object, it will experience an attractive force towards the negatively charged object. Therefore, the positively charged object will move to the right, in the direction of the electric field lines. So, the correct answer is "to the right, in the direction of the electric field lines."
Look at the circuit diagram.
How many switches does the diagram show?
one
two
three
four