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