ch 1 and 2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| whats a reference point? | place or object used for comparison to determine if something is in motion
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| when is an object in motion? | if it changes position relatice to its refernce point
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| whats the equation for average speed? | s=d/t, speed=distance/time
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| whats acceleration? | change in velocity divided by the time it takes for a change to occur
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| whats speed? | the distance traveled divided by the time taken to travel the distance
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| whats the avg speed? | same thing as speed practically use same equation
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| instantaneous speed is? | the speed of an object at one instant of time
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| whats velocity? | the speed of the object and the direction of its motion
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| whats the mass? | amount of matter in an object
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| whats inertia | when an object resists to a change in motion
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| whats momentum ? | the measure of how hard it is to stop the object
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| what does momentum depend on? | mass and velocity
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| The law of the conservation of the momentum? | the total momentum of the objects that collide is the same before and after the collision
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| whats the equation to find out velocity? | avg speed equation
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| whats the acceleration equation? | final speed-initial speed/time or Sp-Si/t
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| whats the equation of momentum? | p=mv or momentum=mass*velocity
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| whats the equation for force? | force=mass*acceleration or F=kg*m/s2=1N
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| whats velocity? | speed and direction
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| whats acceleration? | change in velocity
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| whats the acceleration of gravity? | 9.8m/s2
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| whats force? | a push or pull
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| whats balanced force? | equal in size, opposite in direction
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| whats the net force? | the resulting force after all the forces have been added
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| What was newtons 1st law of motion? | matter in motion tends to stay in motion unless acted on by another force.
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| whats friction? | force that opposes sliding between 2 surfaces that are touching
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| what does friction depend on? | pressure and surface
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| what are the types of friction? | static friction:no motion, sliding friction:sliding hands up & down, rolling:like a car or bike down a hill
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| whats gravity ? | force thats exerted between two objects that pull it together
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| what does gravity depend on? | mass
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| whats newtons 2nd law of the motion? | big things need big pushes little things need little pushes
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| what is force measured in? | newtons ex. 50kg*10m/s=500N
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| what is distance? | the length u travel
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| whats displacement? | the direction and difference in position between your starting and ending points
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| whats a balanced force/ | no motion
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| whats unbalanced force? | motion
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| what happens for every reaction? | theres and equal or opposite reaction
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
VaLeRiA!
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