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Vocabulary & Questions

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
show a place that tells where you are; used to compare motion  
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show the amount of space between two points.  
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show the distance between the final and starting position  
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show the process of changing position  
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show describes how fast something is moving (s= d/t)  
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Velocity   show
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Acceleration   show
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show measures an object’s tendency to resist changing its motion. The more inertia an object has, the harder it is to start the object moving or to slow it down. Inertia depends on the amount of matter in an object, or its mass.  
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show is a contact force that resists motion between two touching surfaces  
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Air resistance   show
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show is the pull that all matter exerts on other matter  
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show is the force of gravity on an object on the planet or moon where the object is. Weight is a force and is measured in Newton's  
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Mass   show
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Force   show
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Contact force   show
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Non-contact force   show
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show forces that cancel each other out. If the forces acting on something are balanced its motion doesn’t change.  
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show cause motion and change  
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show an object will remain at rest, or keep moving in a straight line with constant speed, unless an unbalanced force acts on it. Newton’s first law of motion means that an object can speed up, slow down or change direction only if a force acts on it.  
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show an unbalanced force acting on an object causes the object to accelerate in the direction of the force.  
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Newtons Third Law of Motion-   show
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show distance / time  
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show the total distance traveled divided by the total time it took.  
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You are riding your bike for 15 km. It takes you half of an hour to complete the ride. What is your avenge speed? (s= d/t)   show
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I drove 52 km north then turned west and drove 44 km. What is my total distance traveled?     show
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show large displacement: sprinting no displacement: standing  
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Calculate the speed of a truck that traveled 455 miles in 6 hours?   show
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An ant crawled 2 m in 90 seconds; what was his speed?   show
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show 7.87 m/sec  
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A triathlete completed the Ironman Triathlon in 7 hours, 37 minutes. What was his/her average speed over the total distance? Ironman Triathlon: 2.4-mile (3.86 km) swim, a 112-mile (180.25 km) bicycle ride and a marathon 26.22-mile (42.20 km) run   show
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show 0.33 mi/m or 19.8 mi/h  
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What does a horizontal line represent on a distance-time graph?   show
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What does a diagonal line rising steeply represent on a distance-time graph?   show
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What does a diagonal line going back to zero represent on a distance-time graph?   show
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On which axis is time placed on a distance-time graph?   show
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On which axis is distance placed on a distance-time graph?   show
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Mechanical Advantage =   show
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Inclined plane   show
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show grooved wheel with a rope or a cable wrapped around it.  
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show can only change the direction of the force  
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Movable Pulley   show
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show number of sections of rope pulling up the object  
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show The inclined plane family -The lever family  
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show inclined plane, wedge, screw  
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list all the simple machines in the lever family   show
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show a stiff bar that balances or turns on a fulcrum  
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Wheel and axle   show
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pulley   show
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show a slanting surface where one end is higher than the other  
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screw   show
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wedge   show
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show is a lever  
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show is a lever  
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show a wedge  
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needle   show
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flagpole   show
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knife   show
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show lever  
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wagon   show
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scissors   show
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show a lever  
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slide   show
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swing set   show
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Newton's first law   show
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show is energy, attained from a stretch or compressed object  
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Acceleration   show
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show describes both speed and direction of an object  
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Speed   show
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show the total distance traveled divided by the total time of travel  
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show the speed that does not vary or change  
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Speed   show
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Energy   show
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show energy in motion  
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show depends on the object height, and mass  
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Force   show
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show force on an object that are equal in size and opposite in direction  
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show on an object always changes the velocity of an object  
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show the tendency of an object to resist any change in motion  
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Friction   show
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Gravity   show
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Weight   show
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Newton   show
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show work/time  
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show a net force acting acting on object causes the object to accelerate in the direction of the force  
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show can be expressed using the following equation Force = Mass * Acceleration (F=MA)  
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show 9.8m/s2  
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show the force air exerts on a moving object, this force acts in the opposite direction to that of an object motion  
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terminal velocity   show
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show to every action force there is an equal and opposite reaction force  
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work   show
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work =   show
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Power is the rate (or how fast)work can be done   show
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show = work/time  
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