The average distance between the Earth and the sun is referr…

The average distance between the Earth and the sun is referred to as one Astronomical Unit (AU), which is approximately 149,600,000 km – or about 93 million miles. The measure is an average because throughout the year the distance between the Earth and the sun changes. This is because the Earth travels around the sun in an elliptical orbit shaped like an oval rather than a circle. The Astronomical Unit is a relative measure of how close objects are in the solar system. Consider the distance between the Earth and its moon, which is approximately 380,000 km. If we multiply by the ratio of AU to kilometers, we can convert this distance to Astronomical Units.

These questions must be completed before continuing to the s…

These questions must be completed before continuing to the second part of the test containing the last two questions. These three questions do not require you to do any hand writing or the use of scratch paper.  Your attention should remain on the screen while answering these questions.  Make sure that these questions are complete before moving on to Part 2.   Question 1 (10 marks) a)  Describe a situation that demonstrates Newton’s second law of motion. b) Describe an action and reaction force involved with pushing a box forward across the ground. c) What is inertia and how is it related to Newton’s first law of motion?   Question 2 (10 marks) a) Describe how you could determine the net force for an object using a free body diagram.  b) For objects that are sliding across the ground (on Earth), how does the force of gravity influence the force of friction that they are experiencing?   Question 3 (10 marks) a) If an object is placed on a ramp and starts to slide down towards the bottom of the ramp, what force(s) determine it’s acceleration? b) Why would increasing the angle of a ramp increase the acceleration that an object that is sliding down the ramp experiences?    

Students will submit a Family Tree where they describe the m…

Students will submit a Family Tree where they describe the members of their families. The student must appear in the family tree.  Seven more relatives must appear in the tree as well.  Do not submit your tree here! I will grade your Family Tree in the separate link given in the Module and I will update your grade here.