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Nico

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Using Coulomb's Law, if the size of one of the charges increases (and the distance remains the same), what happens to the electric force between them? (2 points) Electrostatic force will remain the same. Electrostatic fo...
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The diagram shows a wooden racetrack with a 500-g car positioned at the top of a slope. Which energy conversion takes place as the car rolls down the track? (2 points) Kinetic energy is converted to potential energy. Pot...
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What is the energy conversion that happens inside a battery? (2 points) Heat Energy to Potential Energy Kinetic Energy to Potential Energy Electrical Energy to Kinetic Energy Chemical Energy to Electrical Energy Skip to...
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A student is designing an electromagnet to lift heavier metal washers for a classroom engineering challenge. The current power source remains available, but the student wants to maximize the magnetic field strength of th...
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The surface of a heated metal object measures 120°C. It is dropped into a bucket filled with water measuring 10°C. Which of the following is most likely to occur? (2 points) Both the water and metal will adjust to the sa...
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If the distance between two objects is doubled, what happens to the gravitational force between them? (2 points) it stays the same it decreases to 1/4 of its original value it decreases to 1/2 of its original value it do...
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In an electric circuit, three resistors with values of 12 Ω, 18 Ω, and 24 Ω are connected in series. What is the total resistance?(2 points) 30 Ω 54 Ω 5.5 Ω 18 Ω
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Sam, an electrician, wraps a copper wire with a thick plastic coating. What is he most likely trying to do?(2 points) keep the electric potential of the wire balanced decrease the wire’s resistance increase the voltage p...
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How does increasing the distance between charged objects affect the electric force between them?(2 points) The electric force decreases because the distance has an indirect relationship to the force. The electric force d...
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An electric flashlight can be charged by turning a crank. Identify the types and order of energy changes happening.(2 points) Mechanical --> Electric --> Light Mechanical --> Heat --> Electric Electric --> Light --> Heat...
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The drawing shows a student holding two negatively charged balloons. What is most likely to occur if the student brings the balloons closer to each other? (4 points) The magnitude of the electrostatic force between the b...
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Which is NOT an advantage of a series circuit?(3 points) They are able to have additional power sources easily added to them. They are circuits so that if one section of the circuit fails, the whole circuit fails. They d...
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For a class project, Jerome builds a simple circuit with a battery and three light bulbs. On his way to school, Jerome drops his project and breaks one of the light bulbs. He has no time to fix or replace the bulb, so he...
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Three light bulbs are connected in a series, as shown in the diagram. After the circuit is completed, the middle light bulb breaks. What will happen to the remaining light bulbs? (2 points) Only the light bulb closest to...
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What is another name for an object that uses up the electrical energy in a circuit?(3 points) Load Source Battery Wire
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Avery is experimenting with a simple circuit. She measures the current in the circuit three different times with a different battery each time. First, she uses a 1.5-volt battery. Next, she uses a 3-volt battery. Last, s...
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The relationship between voltage (V), current (I), and resistance (R) is shown in the equation. V=IR What happens to the current flowing through a circuit as resistance increases? (3 points) It stays the same. It reverse...
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A car radio with a resistance of 15 ohms draws a current of 0.87 amperes. What is the voltage of the car battery? (3 points) 1.3 volts 5.8 volts 13 volts 17 volts
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Salt water is a good conductor. When salt is dissolved in water, which of following explains why it becomes a good conductor? (2 points) The salt dissolving require physical mixing to move the charges The salt dissolving...
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Which of the following determines if a material is a conductor or an insulator?(3 points) number of electrons proton movement number of protons electron movement
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What materials generally act as a good conductors?(3 points) Nonmetals Metals Gases Organics
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Which of the following statements regarding electric insulators is correct?(3 points) Electric insulators are good heat conductors. Charges within electric insulators do not readily move. Electric charges move freely in...
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You live at point A and your friend lives at point D. You let your friend borrow your calculator, but now you need it for tomorrow's test! You decide to meet each other exactly in the middle between the two houses. Which...
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Are the pairs of lines parallel, perpendicular, or intersecting?(3 points) y−6=14(x+2) y=−4x−10 2x−y=7 3x−4y=−8 y=−23x+7 −2x−3y=12 Skip to navigation
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The pair of points (g, -1) and (2, 5) lie on a line with a slope of 32 . What is the value of g? (1 point) -2 -5 3 4
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