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Transcript
Newton’s 1st Law Newton’s 2nd Law Newton’s 3rd Law Metric System Grab Bag 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500 An object in motion stays… What is “in motion unless acted upon by an outside force”? What would have happened if this guy yelled at the golf ball instead of hitting it What is it would not have moved? An object at rest… What is “will stay at rest, unless acted upon by an outside force”? The property of an object that resists change in its motion What is inertia? A bowling ball that has a mass of 5000 g has _____________ times the inertia over a baseball with a mass of 5 g What is 1000x? Change in speed over time What is acceleration? The formula for Newton’s 2nd Law What is F=ma ? Any unit of acceleration What is : m/sec./sec. m/sec.² mi./hr./min km/hr./sec. or ? The acceleration of this refrigerator pusher What is 1 m/sec./sec.? If each dot represents one second (8 total), the speed of a can of coke dropped out of this plane (there is no wind resistance). What is 78.4 m/sec.? v=gt v=9.8m/sec./sec. x 8 sec. v= 78.4 m/sec. Newton’s rd 3 Law What is for every action there is an equal and opposite reaction? The person who will exert a greater force when they push off each other Who is neither? They will exert the same force against each other. Action Daily Double Do an action that has 2 action reaction pairs, and state what they are. Momentum deals is based on these two properties of an object What are mass and velocity? The man is accelerating to the right at 20 m/sec./sec., and has a mass of 50kg. The Newton’s of force is the dinosaur exerting on him What is 1000N? The symbol for “change in” What is Δ (delta)? The difference between speed and velocity What is velocity takes into account the direction of the moving object? Pounds is to grams as gallons is to __________ What is liters? The conversion of 5cm into m What is 0.05m? The metric unit equal to kg x m sec.² What is a Newton? This guy: Sir Isaac Newton: pictured below in a much more macho picture Action Daily Double Calculate the speed of the plane When you launch a rocket up in the air at 75 miles/hour, 0.33 miles in the air, the speed at the top of the arc What is 0 miles/hour? The formula for average velocity What is average v = v2 + v1 2 ? The rate of acceleration in Disney’s Tower of Terror, assuming no friction What is 9.8 m/sec.² ?