word wall Flashcards
Balance
Tool used to compare the masses of different objects
Mass
The amount of matter in an object
Length
Distance from end to end
Tool: Ruler
Pivot Point/
Fulcrum
Center point where a lever rests
Lever Arm/Plank
Beam that rests on a fulcrum
Equilibrium
The point where the balance is level,
Reaction time
The time it takes information from your eye to reach the brain and for the brain to send a signal down to your muscles
Control
Parts of the experiment that stay the same
Variable
Parts of the experiment that change
Acceleration
Rate of change of speed/velocity
Gravity
An invisible force that pulls objects towards each other, in our case, towards earth
Metric System
A system of measure based on the number 10.
*Also called SI system (International System of units)
*Used everywhere except the United States, Burma (Myanmar), Liberia
Matter
Everything, anything with mass and takes up space
Property
A characteristic that is observable and measurable
Unit
Distance from end to end
SI unit: m = meter
Equipment: ruler