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Flashcards in Idk Deck (10)
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1

Vector

Scalar + direction. Can be added and subtracted
Plane flying 500 mph east but 100 mph winds so resultant vector is 400 mph

2

To find where a plane is going when it's 500 mph north but winds are blowing 200mph easy

A2+B2=C2

3

How do planes use vectors

Planes use vectors to compensate wind speed

4

Speed =

Distance/time
Bus ride speed= 42mi/1hr

5

Average speed vs instantaneous speed

Average- over a longer period time
Instantaneous- at one moment

6

Acceleration?

Change
Velocity/time
Example - 1block per second squared

7

Newton's first law

Objects in motion stay in motion and objects in rest stay at rest unless a force acts upon it

8

Newtons 2nd law

The force applied to an object is directly proportional to its acceleration and force required to accelerate an object is proportional to its mass f=ma
If force ghost two times a mass stays the same acceleration ghost two times up
But if for stays the same and mask goes to times up acceleration goes up one half

9

Newton's third law
What is static
Example of this law

For every push there is a pull
Static is no change/forces cancel out
Shooting a gun

10

Scalar

Measurements that compare quantity