Bellwork: Unit 2-3-Forces and Motion, and Gravity Physical Science

09/08/2015 Review your study guide.

09/10-11/2015 How do you determine if an object is motion?

09/11/2015 How do you calculate speed? How long will it take a cyclist to travel 400 m in 10 s?

09/15/2015 Explain the difference between average speed and instantaneous speed?

09/16-17/2015 How do you graph motion?

09/18/2015 What is the jogger’s average speed?

09/21/2015 What is force?

09/22/2015 Describe the three contact forces.

09/23-24/2015 Which surface would provide the greatest amount of friction? The least amount? Why?

09/25/2015 Describe the forces acting at a distance.

09/28/2015 Describe the factors that affect gravity.

09/29/2015 Explain the Universal Law of Gravitation.

09/30-10/01/2015 Explain the difference between mass and weight.

10/02/2015 Explain the difference in balanced and unbalanced forces.

10/05/2015 What is the net force on the soccer ball?

10/06/2015 You pull on your dog’s leash to the right with a 12 N force. Your dog pulls to the left with a 6 N force. Sketch this situation, including labeled force arrows. What is the net force on the leash?

10/07-08/2015 Create a Venn diagram that compares Newton’s three laws of motion.

10/09/2015 Why is it important to wear a seatbelt while riding in a car? Explain your answer using Newton’s laws of motion.

10/12/2015 Review your study guide.

10/13/2015 Who will win the tug of war? Explain using Newton’s laws of motion.

10/14-15/2015 Review your study guide.

10/16/2015 Explain the Law of Conservation of Energy.