1. If a student wishes to conduct an experiment to prove the conservation of momentum between two colliding objects, what are the minimum quanitities the student must record in order to complete this experiment and explain why you think they must record those? 2. What is the inverse square law and how does it relate to gravity?3. What would be the electrostatic force between an electron and a neutron? Explain.

Answer and Explanation:

1. The student would need to collect masses of each object, initial and final velocities of each. These quantities are necessary because Conservation of Momentum states that in a collision, the total momentum of the objects at the beginning is equal to the total momentum of the objects at the end; which means that while one object loses momentum, the other gains it.

As momentum is calculated as mass times velocity, to prove conservation those are the data you need to collect.

2. Inverse Square Law means that one quantity is inversely proportional to the square of the distance.

For example, Gravitational Force is given by .

Distance r is calculated in relation to the center of the Earth. So, if an object is at closer to the center, it will feel an enormous amount of force on it.

3. Eletrostatic Force between an electron and a neutron will be zero because force is dependent on the distance between them and the magnitude of their charges.

The magnitude of charge of a neutron is zero, so eletrostatic force is also zero.