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