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THIS IS Review For Your Physics V&A Displacem ent & vectors Free Fall Projectiles Newton’s Laws Assorted Physics 100 100 100 100 100 100 200 200 200 200 200 200 300 300 300 300 300 300 400 400 400 400 400 400 500 500 500 500 500 500 What do we call velocity that does not change? A 100 It is called constant velocity. A 100 Why is velocity is a vector quantity? A 200 Velocity has both magnitude and direction. A 200 What causes a change in acceleration? A 300 A change in magnitude or direction. A 300 What are the common SI units of acceleration? A 400 m/s2 (meters per second per second) A 400 If the sign of velocity is negative, and the sign on acceleration is positive, is the object slowing or increasing its speed? A 500 It is slowing down. A 500 How is a scalar different from a vector quantity? B 100 A vector quantity has both magnitude and direction, while a scalar has only magnitude. B 100 What is the term refers to the total length of an object’s movement? B 200 Distance B 200 What results from the addition of vectors? B 300 A resultant. B 300 What term is refers to the shortest distance between initial and final positions? B 400 Displacement B 400 Which of these is not a vector quantity? momentum, centripetal force, mass, or work B 500 Mass B 500 What scientist experimented with and conducted “thought experiments” on falling bodies. C 100 Galileo C 100 Two object of different masses, falling near the earth’s surface in a vacuum, should accelerate to earth at what rate? C 200 Both should acceleration to Earth at approximately 9.8 m/s2 C 200 What factors could affect the rate an object accelerates through the earth’s atmosphere? C 300 Air Resistance and shape of the object. C 300 DAILY Don’t Place A Wager DOUBLE C 400 What is the relationship between time, g, and the distance fallen by a freelyfalling object? C 400 Distance increases proportionally with the square of time (distance fallen = ½ gt2) C 400 What are astronauts on the International Space Station weightless? C 500 They are in a constant state of free fall because they are in orbit. C 500 If a plane flying 200 miles/hr drops a package, neglecting air resistance, where will the plane be in relation to the package when it hits the ground? D 100 Directly over the package. D 100 Neglecting air resistance, what is the only force that acts on a projectile once it is launched? D 200 Gravity D 200 One a projectile is launched, what allows it to continue its forward motion before it hits the ground? D 300 Its own inertia. D 300 Neglecting air resistance, the path of a projectile has what shape? D 400 What is parabolic? D 400 Which of the following demonstrates projectile motion? A punted football, a cannon ball shot from a cannon, a baseball thrown straight up into the air, a water droplet from a sprinkler head. D 500 The baseball thrown straight up into the air. D 500 What is Newton’s First law of motion? E 100 A body naturally tends to continue in whatever state of motion or rest and tends to resist any changes. An object at rest tends to stay at rest. An object in motion tends to stay in motion (unless an unbalanced force acts on it). E 100 What property of matter refers to resistance to a change in motion? E 200 Inertia E 200 What equation can represent Newton’s second law of motion? E 300 F = ma E 300 What is the relationship between force and acceleration according to Newton’s second law? E 400 They are directly proportional (The larger the force, the greater the acceleration.) E 400 What is Newton’s third law or Motion? E 500 When an object exerts a force on a second object, the second objects exerts a force on the first that is equal in size and in the opposite direction. (“To every action, there is an equal and opposite reaction.”) E 500 Where on the graph below is there constant velocity? F 100 (b) F 100 A Newton-meter is equivalent to what unit of work or energy? F 200 The Joule F 200 Power may be defined by what relationship? F 300 Power = work/time (the rate at which work is done) F 300 What is the unit of Power? F 400 The Watt F 400 What law states that energy is not created or destroyed, but converted from one form to another? F 500 The Law of Conservation of Energy. F 500 The Final Jeopardy Category is: Simple Machines Please record your wager. Click on screen to begin How does a simple machine make work easier? Click on screen to continue A simple machine can increase the amount of effort force applied to the machine. It can do this by increasing the distance that the effort force is applied (such as using a long lever to pry a heavy object). Click on screen to continue Thank You for Playing Jeopardy! Game Designed By C. Harr-MAIT