𝟙.) Use the table to answer the question.
Object Charge (C)
A +1
B +2
C –1
D –2
Assuming other factors are held constant, which two objects will have the strongest attractive force between them?
🅰🅽🆂🆆🅴🆁: Object B and object D
𝟚.) How does the distance between charged objects affect the electric force between them?
🅰🅽🆂🆆🅴🆁: As distance increases, the strength of the force decreases.
𝟛.) Which material would be the best conductor of electricity?
🅰🅽🆂🆆🅴🆁: Copper
𝟜.) Which particles move freely in a conductor?
🅰🅽🆂🆆🅴🆁: Negatively charged electrons
𝟝.) How would increasing the voltage and the resistance affect the electric current in a simple circuit?
🅰🅽🆂🆆🅴🆁: Increasing the voltage would increase the amount of current. Increasing the resistance would decrease the amount of current.
𝟞.) A simple electric circuit has the following properties:
resistance: 12 ohms
voltage: 96 V
Which circuit below has the same current?
🅰🅽🆂🆆🅴🆁: Resistance: 6 ohms Voltage: 48 V
𝟟.) When a hydroelectric dam is operating, falling water moves turbines, which are able to generate an electric current. Which energy transformations are taking place during operation?
🅰🅽🆂🆆🅴🆁: Potential to kinetic to electrical
𝟠.) An electric current moves through a circuit that makes a complete loop. How will the amount of electrical energy change as the current moves through the circuit?
🅰🅽🆂🆆🅴🆁: Electrical energy will decrease if it is converted into other forms, such as heat or mechanical energy.
𝟡.) Which option could be the load of an electric circuit?
🅰🅽🆂🆆🅴🆁: Light bulb
𝟙𝟘.) How does a light switch control a light?
🅰🅽🆂🆆🅴🆁: The switch opens or closes the circuit.
𝟙𝟙.) Use the table of information about three electromagnets to answer the question.
Electromagnet Current Intensity Number of Turns in the Wire
J high 20
K medium 20
L high 45
Which list shows the electromagnets in order from weakest magnetic force to strongest magnetic force?
🅰🅽🆂🆆🅴🆁: K, J, L
𝟙𝟚.) How is an electric field produced?
🅰🅽🆂🆆🅴🆁: When an object has an electric charge
♛ 100% ♛
To answer the question in the first scenario, we need to look at the table that provides information about the charges of different objects. Based on the table, objects B and D have charges of +2 and -2 respectively. Since opposite charges attract each other, objects B and D will have the strongest attractive force between them.
In the second scenario, the question asks about the effect of distance on the electric force between charged objects. As distance between charged objects increases, the strength of the force between them decreases. This is because the electric force follows an inverse square law, meaning that the force decreases exponentially as the distance between the objects increases.
To determine which material would be the best conductor of electricity, we need to consider the properties of different materials. Among commonly used materials, copper is one of the best conductors of electricity, due to its high electrical conductivity.
When it comes to which particles move freely in a conductor, it is the negatively charged electrons. In a conductive material, electrons are loosely bound to the atomic nuclei and can move freely, carrying the electric current.
Increasing the voltage in a simple circuit would increase the amount of current, as voltage is directly proportional to current. On the other hand, increasing the resistance in a simple circuit would decrease the amount of current, as resistance is inversely proportional to current, according to Ohm's Law.
To find a circuit with the same current as a given circuit with a resistance of 12 ohms and a voltage of 96 V, we need to apply Ohm's Law (V = IR). If we divide the voltage by the resistance, we will get the current. In this case, the current is 96/12 = 8 amperes. So, we are looking for a circuit that has a current of 8 amperes.
During the operation of a hydroelectric dam, multiple energy transformations are taking place. The falling water converts its potential energy into kinetic energy as it moves the turbines. The turbines then convert the kinetic energy into electrical energy by generating an electric current.
As an electric current moves through a circuit, the amount of electrical energy can change. If there are no energy losses in the form of heat or other types of energy, the amount of electrical energy would remain constant. However, in real-world circuits, energy is often converted into other forms, such as heat or mechanical energy, causing a decrease in electrical energy.
A load in an electric circuit refers to a device or component that consumes electrical energy and is designed to do useful work. A light bulb is an example of a load in an electric circuit, as it converts electrical energy into light and heat.
A light switch controls a light by opening or closing the circuit. When the switch is turned on, it closes the circuit, allowing current to flow through the light bulb and illuminate it. Conversely, when the switch is turned off, it opens the circuit, interrupting the flow of current and turning off the light.
To determine the order of electromagnets from weakest magnetic force to strongest magnetic force, we need to consider the current intensity and the number of turns in the wire for each electromagnet. Based on the given information, electromagnet K has a medium current intensity and 20 turns, electromagnet J has a high current intensity and 20 turns, and electromagnet L has a high current intensity and 45 turns. Comparing these combinations, the weakest magnetic force is produced by electromagnet K, followed by electromagnet J, and finally electromagnet L has the strongest magnetic force.
An electric field is produced when an object has an electric charge. Electric fields surround charged objects and exert forces on other charged objects. The strength and direction of the electric field are determined by the magnitude and sign of the electric charge.