# Idec Flashcards

1
Q

Centripetal force vs centrifugal

A

Centripetal force is center seeking while centrifugal is center fleeing centripetal gravity goes from the earth to the sun but centrifugal goes away from the sun

2
Q

What is geosynchronous orbit

A

It’s one altitude in space that if you put a satellite there it’ll orbit with the earth (22,300miles)

3
Q

Explain friction and the 2 types

A

Friction is when things rub together
Kinetic friction is motion
Static friction is 2 objects in a gravity environment preventing them from moving
It’s proportional to mass

4
Q

Explain work

A

Work=force(distance)

The moment something stops moving there is no work being done

5
Q

Power

A

Power=work divided by time

How quickly something is being accomplished

6
Q

Momentum

A

Momentum = mass x velocity

Always conserved and converted into heat energy

7
Q

Elastic vs Inelastic

A

Elastic is when momentum is transferred to another object with no structural damage but Inelastic causes structural damage

8
Q

6 simple machines

A

Lever, wheel and axel, wedge, incline plans, screw, and pulley

9
Q

Fulcrum

A

Pivot point

10
Q

3 types of levers

A

Type 1 fulcrum is middle
Type 2 output is middle
Type 3 input is middle

11
Q

Pulley/weight experiment

A

Holding the weight straight up equals 1000 pounds but when you put it on the ramp now You have twice the distance now it’s only half of the force so now the weigh is 500
The more staighten up the ramp is, the closer to 1000 you are
force x distance = force x distance (1,000x1=500x2)

12
Q

Drop rock example

A

If you drop a rock and count seconds each second it falls about 5 m from 0 to 1 it falls 5 m total from 0 to 2 it falls 15 from 0 to 3 it is 25 if you add those you get 45