A) work B) gravitation C) magnetism D) friction E) force
A) work B) magnetism C) gravitation D) friction E) force
A) work B) friction C) force D) gravitation E) magnetism
A) work B) force C) magnetism D) unbalanced forces E) balanced forces
A) gravitation B) work C) force D) power E) net force
A) power B) work C) net force D) friction E) force
A) unbalanced forces B) friction C) power D) work E) balanced forces
A) newton B) magnetism C) gravity D) friction
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) a force sending it backward C) an equal and opposite reaction D) a movement in all directions
A) its mass and velocity changes B) its momentum changes C) Its position changes D) its frame of reference changes
A) The movement of objects on Earth and in space B) how frame of reference influences movement 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) 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) law of universal gravitation B) inertia C) reaction force D) orbit
A) Law of Gravitation B) action force C) inertia D) orbit E) reaction force
A) orbit B) action force C) inertia D) Reaction force
A) speed B) momentum C) position D) velocity E) acceleration
A) acceleration of that object B) velocity of that object C) momentum of that object D) position of that object E) the speed of that object
A) speed B) acceleration C) velocity D) momentum E) position
A) acceleration B) position C) speed D) momentum E) velocity
A) a spacecraft can travel in space for thousands of years 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) trucks slow down when they are travelling uphill
A) a lever and a wedge B) a pulley and a screw C) A screw and a wedge D) a wedge and a pulley
A) a magnet B) speed C) a machine D) friction
A) a current B) a power C) a machine D) a force
A) friction B) power C) work D) force E) magnetism |