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g8 > force > Flashcards

force Flashcards

1
Q

1 Kg= N

A

9.8N

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2
Q

friction

A

force that opposes the motion of a object

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3
Q

2 contact forces are:

A

contact force and action at distance

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4
Q

gravity

A

attraction of 2 objects due to their mass

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5
Q

mass

A

matter in a object

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6
Q

Newton formula

A

Fᵍ=MG N=9.8W

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7
Q

work

A

the amount of effort spent when a force moves an object

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8
Q

energy

A

the ability to do work

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9
Q

work unit

A

joules

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10
Q

3 types of energy

A

potential kinetic gravitation

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11
Q

potential energy

A

energy that is stored

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12
Q

kinetic energy

A

the energy to make something move

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13
Q

gravitation energy

A

potential of object that is able to fall

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14
Q

work formula

A

W=FD J=NM

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15
Q

thermal energy

A

energy caused by the increase in temperature of an object

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16
Q

transitions

A

energy can not be created or destroyed only transferred

17
Q

ima

A

ideal machine advantage where there is no friction

18
Q

ima of 1

A

what you put in you get out meant to change direction

19
Q

ma<1

A

less output them input meant to increase speed

20
Q

lever

A

a straight bar that is supported at one point that is the fulcrum

21
Q

3 types of levers

A

1st class 2nd class 3rd class

22
Q

1st class lever

A

fulcrum is in the middle (seesaw)

23
Q

2nd class lever

A

fulcrum is on side and fout is in middle and fin is on the outside (bottle opener)

24
Q

3rd class lever

A

fin is in the mid and fout is in the out side and the fulcrum is in the other side (base ball bat)

25
Q

incline plane

A

a sloping surface that allows a object to move on increase dis to allow less force

26
Q

wedge

A

a incline plane that travels through an object (longer and more narrow=less force)

27
Q

screw

A

am incline plane wrapped around a rod (incline portion is called thread)

28
Q

pulley

A

a grooved wheel that allows rope to rap around, can change direction of force and increase MA

29
Q

2 types of single pulleys

A

movable pulley and fixed pulley

30
Q

block and tackle

A

a pulley system that has at least 1 fixed pulley

31
Q

ima of wheels and axels

A

din/dout = diameter wheel/diameter axel = cirum wheel/cirum axel

32
Q

gear

A

a wheel with teeth that mesh with teeth of other hear to transfer force

33
Q

3 types of gears

A

driver follower idler

34
Q

gear ratio

A

num driven teeth/num driver teeth

35
Q

rpm

A

rotation per min

36
Q

velocity

A

driver/driven

37
Q
A

g8 (3 decks)

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