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