General Physics Review Assignment Chapter 3 Projectile Motion Name: _______________________________________ Per.: _____ Date: ____________ Fill In the Blank 1. A quantity that has both magnitude and direction is called a _______________________ ________________. 2. A quantity that has only magnitude is called a __________________ __________________. 3. The length of a vector corresponds to the___________________ of the quantity. 4. The orientation of a vector corresponds to the ___________________ of the quantity. 5. A projectile flies through the air only under the influence of _________________. 6. The vertical component of a projectile’s motion is _______________________ of the horizontal component of the projectiles’s motion. 7. A projectile undergoes constant horizontal ____________________________ and constant vertical ________________________. 8. Air resistance will __________________ the distance a projectile will fly. 9. A ball is dropped off a cliff. At the same time, a second ball is thrown horizontally off the cliff. The two balls will land _________________________________________. 10. The optimum angle to launch a projectile at is ______________________ so it will travel the farthest. Short Answer: Answer in the space provided. 11. Draw a labeled diagram of projectile motion. 12. Compare vectors and scalars and give an example of each. 13. What is a projectile? Give an example of a projectile. Problem Solving: Show all your work in the space provided. Be sure to draw a diagram for each problem. Assume no air resistance. 14. Henry accidentally falls out of a helicopter that is traveling horizontally at 45 m/s. He plunges into the water below 5.00 seconds later. What horizontal distance did he travel while falling? Solve algebraically. 15. Judith jumps horizontally from the top of a building that is 25.0 m high. She hopes to reach a swimming pool that is at the bottom of the building. The edge of the pool is 18 m horizontally from the edge of the building, and the pool is 22 m wide. If she is to reach the center of the pool, what must her jumping speed be? Solve algebraically. 16. Draw a vector that represents 7535 km/hr west. 17. A skier travels 3 m west, turns and travels 4 m south. What is his final displacement? Solve algebraically and graphically