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Ch. 13 Science

Ch. 13 Science Test - 5th Grade

QuestionAnswer
motion movement
constant motion earth moving around the sun
variable motion cars, trains, hearts...
speed how fast an object is moving
velocity speed plus direction
force a PUSH or a PULL on an object
gravity a force that pulls smaller objects toward larger objects
magnetism a force that pushes or pulls magnets (or metals)
magnetic field the area around a magnet where there is force
friction a force that SLOWS DOWN or STOPS motion
What does friction cause? Heat
work MOVES
power rate at which work is done
Newton's 1st Law Inertia (things in motion stay in motion; things at rest stay at rest)
Newton's 2nd Law Force = Mass x Acceleration
Newton's 3rd Law any time force happens an equal force pushes the opposite way
Created by: amarshall4