Use the Force
This force pulls objects towards the center of the Earth.
Gravity
A skateboard, bike, and shopping cart all have a ___________
Wheel + Axle
the saying that helps us remember the 3 class of levers is 1, 2, 3 _____________
F L E
if I am lifting a 2.4 N load with a fixed pulley, my effort will be__________ N
2.4
True or false, it is safe to touch dry ice without my permission.
False
The equation for this is force X distance
Work
slanted surface used to lift loads
Incline Plane
The lever part in the middle of a class 2 lever.
Load
a pulley consists of a rope and _______________
Wheel + axle
True or false, simple machines remove work.
False
Can be a push or pull.
Force
A bottle cap is an example of a____________
Screw
A baseball bat is an example of this class of lever.
Class 3
The distance of our effort ____________ with more pulleys
Increases
the tool we used to measure force in Newtons
Spring Scale
the unit we measure force / effort
Newtons
Used to push objects apart
Wedge
If the effort is close to the fulcrum, the lever will be ________ to move.
Harder
this type of pulley gives us directional advantage.
Fixed Pulley
Sublimation
the process of a solid becoming a gas
A force caused by 2 objects rubbing against each other
Friction
Simple machines make work easier by spreading effort over a____________
Distance
The 4 parts of a lever.
Fulcrum, lever arm, effort, load
A moveable pulley makes loads easier to lift, so it has this advantage.
Mechanical
Although normal ice is H2O, dry ice is ________
CO2