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