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