1. Which law gives the force between two objects that is related to their mass and distance?

A. Newton's law of gravitation
B. Coulomb's law
C. Kepler's law
D. Newton's second law of motion

2. What is the property that allows a positive proton and a negative electron to feel an attraction between each other?
A. Mass
B. Charge
C. Spin
D. Weight

3. In which case would there be an electrostatic force between two objects?
A. two neutral objects
B. a negatively charged object and a neutral object
C. two positively charged objects
D. a positively charged object and a neutral object

4. Which statement is correct about the electronstatic force?
A. It depends on the mass of the charge
B. It can have a positive or negative value
C. It is independent of the distance between charges
D. It is only observed between two electrons

5. In the simulation, the two charges are both set to +4 μC. Then one of the charges is changed to −4 μC. Which statement describes the situation?
A. The electostatic force changes from attractice to repulsive.
B. The electrostatic force is originally attractice and stays attractive.
C. The electostatic force is originally repulsive and stays repulsive.
D. The electostatic force changes from repulsive to attractive.

1 newtons law of gravitation

2 charge
3 two positively charged
4 positive or negative value
5 changes from repulsive to atractive.
100% on quick check

U5 L2 Newton's and Coulomb's Laws

1. C, Newton's law of gravitation
2. B, charge
3. C, two positively charged objects
4. C, It can have a positive or negative value.
5. A, The electrostatic force changes from repulsive to attractive.

b cjhdvjy And Snxwii Angɛƚ are 100% correct😄

1. The correct answer is A. Newton's law of gravitation.

To arrive at this answer, you can recall the fundamental law proposed by Sir Isaac Newton. Newton's law of gravitation states that every particle in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. Mathematically, this can be expressed as:

F = G * (m1 * m2) / r^2

Where F is the gravitational force, G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between their centers. This law explains the force between two objects based on their masses and distance, making gravity the correct answer.

2. The correct answer is B. Charge.

To determine this, you need to understand the concept of electric charge. Electric charge is a fundamental property of matter, and it can be positive or negative. Protons carry positive charge, while electrons carry negative charge. According to the principle of electrical attraction and repulsion, opposite charges attract each other, and similar charges repel each other. In the case of a positive proton and a negative electron, they would feel an attraction towards each other due to their opposite charges.

3. The correct answer is B. A negatively charged object and a neutral object.

To find the answer, consider that an electrostatic force exists between charged particles. When an object carries a net positive or negative charge, it creates an electric field around it. This electric field can exert a force on other charged objects within its vicinity. In the case of two objects, if one is negatively charged and the other is neutral, there will be an electrostatic force between them. The negatively charged object will repel the negatively charged particles in the neutral object, resulting in an overall attraction force between the two objects.

4. The correct statement is B. It can have a positive or negative value.

To determine this, recall that the electrostatic force is associated with electric charges. Electrostatic force can be either attractive or repulsive, depending on the charges involved. Like charges repel each other, resulting in a repulsive force, whereas opposite charges attract each other, leading to an attractive force. Therefore, the electrostatic force can have both positive and negative values, depending on the nature of the charges involved.

5. The correct statement is A. The electrostatic force changes from attractive to repulsive.

To determine this, consider the principle of electrical attraction and repulsion. When both charges are set to +4 μC, they have the same positive charge. According to the principle, like charges repel each other. Therefore, the electrostatic force between them is initially repulsive.

However, when one of the charges is changed to -4 μC, it now carries a negative charge. Opposite charges attract each other. Therefore, the electrostatic force changes from repulsive to attractive, as the positive charge is attracted to the negative charge.

no ideas on any of these? Surely at least #1 is obvious.

If not, you have some catching up to do.
Maybe if you wrote down the two laws involved, and what the various symbols mean, it will trigger your memory.