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