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