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