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