Discussion Based Assessment 1. What determines if a material is a conductor or an insulator? Explain your answer and
provide at least one example of each.
2. Describe electric current.
3. Describe how a battery works.
4. Define a circuit and describe 3 major parts of a circuit.
5. Define resistance and discuss how it affects current.
6. Describe what determines magnetism.
7. Discuss the difference between renewable and nonrenewable resources. Give an
example of each.
8. Describe two ways, discussed in the lesson, that human behavior has a negative impact
on the environment.

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".

Which planet do you think would be easiest for humans to colonize some day?

Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.