Transcript File jeopardy_review_ch_4
Choose a category. You will be given the answer. You must give the correct question. Click to begin. Click here for Final Jeopardy Types of Forces Force Diagrams Newton’s First Law Newton’s 2d & 3d Laws Everyday Forces 10 Point 10 Point 10 Point 10 Point 10 Point 20 Points 20 Points 20 Points 20 Points 20 Points 30 Points 30 Points 30 Points 30 Points 30 Points 40 Points 40 Points 40 Points 40 Points 40 Points 50 Points 50 Points 50 Points 50 Points 50 Points This kind of force requires contact between two objects. What is a contact force? This kind of force does not require objects to be in contact. What is a field force? This type of force includes gravity. What is field force? This type of force includes friction. What is contact force? This long range field force affects all matter in the universe. What is gravity? This type of force diagram shows the forces acting on one object. What is “free body diagram”? In a force diagram, this is the direction gravity points. What is straight down? In a force diagram of a falling object, this is the direction air resistance points. What is up? If a force diagram shows only a 3 N force up and a 3 N force down, this is the net force. What is 0? If a force diagram shows a 3 N force to the right and 4 N down, this is the amount of the net force. What is 5 N? It’s the net force that is acting on an object that is at rest. What is 0? It’s the net force acting on an object that is moving with constant velocity. What is 0? This refers to an object’s resistance to changes in its motion. What is inertia? It’s what an object that has a net force on it must do if it doesn’t change speed. What is “change direction”? Of a car or a bicycle, it’s the one that has more inertia. What is a car? According to this law, forces always come in action/reaction pairs. What is Newton’s 3d Law? According to this law, acceleration is directly proportional to force. What is Newton’s 2d Law? According to this law, acceleration is inversely proportional to mass. Newton’s 2d Law If a hammer pressing on a nail is the force, this is the reaction force. What is the nail pressing on the hammer? This is the force needed to cause a 6 kg mass to 2 accelerate 2 m/s . What is 12 N? This is the name for contact forces that oppose motion. What is friction? If the applied force is to the east, this is the direction of the force of friction. What is west? Once an object starts moving, this is what happens to the amount of friction. What is decrease? This is the direction of the normal force. What is perpendicular to the surface? This is the name for the magnitude of the force of gravity. What is weight? Make your wager If a 2 kg mass has a 6 N force pulling it north, and a 8 N force pulling east, this is the What is 5 2 m/s ?