A) friction B) gravitation C) force D) magnetism E) work
A) force B) friction C) magnetism D) gravitation E) work
A) friction B) work C) force D) magnetism E) gravitation
A) magnetism B) work C) balanced forces D) unbalanced forces E) force
A) gravitation B) net force C) power D) work E) force
A) power B) net force C) work D) friction E) force
A) friction B) unbalanced forces C) power D) balanced forces E) work
A) magnetism B) newton C) gravity D) friction
A) it is placed on a flat surface B) it continues in a straight line C) a nearby star acts on it D) an outside force acts on it
A) a force sending it backward B) a greater force pushing on it C) a movement in all directions D) an equal and opposite reaction
A) its frame of reference changes B) its mass and velocity changes C) its momentum changes D) Its position changes
A) how frame of reference influences movement B) Why all moving objects eventually stop moving C) the relationship between the four basic elements D) The movement of objects on Earth and in space
A) the ground pushes against your feet when you run B) People in a car move forward in their seats when the car stops quickly C) gravitational forces are stronger on Earth than on the moon or other satellites D) friction can be overcome for all objects
A) reaction force B) orbit C) inertia D) law of universal gravitation
A) orbit B) Law of Gravitation C) inertia D) action force E) reaction force
A) orbit B) inertia C) Reaction force D) action force
A) momentum B) acceleration C) speed D) velocity E) position
A) the speed of that object B) acceleration of that object C) momentum of that object D) position of that object E) velocity of that object
A) velocity B) speed C) momentum D) acceleration E) position
A) position B) velocity C) momentum D) speed E) acceleration
A) a ball thrown into the air always falls back toward Earth B) trucks slow down when they are travelling uphill C) a pole can be knocked down when a moving car hits it D) a spacecraft can travel in space for thousands of years
A) a wedge and a pulley B) a lever and a wedge C) a pulley and a screw D) A screw and a wedge
A) friction B) a machine C) a magnet D) speed
A) a machine B) a current C) a force D) a power
A) friction B) magnetism C) power D) work E) force |