A) work B) friction C) gravitation D) force E) magnetism
A) force B) work C) magnetism D) friction E) gravitation
A) work B) gravitation C) magnetism D) force E) friction
A) force B) unbalanced forces C) magnetism D) balanced forces E) work
A) power B) gravitation C) work D) force E) net force
A) net force B) force C) friction D) power E) work
A) power B) work C) balanced forces D) friction E) unbalanced forces
A) magnetism B) gravity C) friction D) newton
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 movement in all directions D) a greater force pushing on it
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) Why all moving objects eventually stop moving C) the relationship between the four basic elements D) how frame of reference influences movement
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) gravitational forces are stronger on Earth than on the moon or other satellites D) friction can be overcome for all objects
A) law of universal gravitation B) inertia C) reaction force D) orbit
A) reaction force B) orbit C) Law of Gravitation D) action force E) inertia
A) orbit B) Reaction force C) inertia D) action force
A) velocity B) position C) momentum D) acceleration E) speed
A) the speed of that object B) momentum of that object C) position of that object D) acceleration of that object E) velocity of that object
A) position B) momentum C) acceleration D) velocity E) speed
A) acceleration B) momentum C) speed D) position 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 pulley and a screw B) A screw and a wedge C) a wedge and a pulley D) a lever and a wedge
A) a magnet B) friction C) speed D) a machine
A) a current B) a machine C) a power D) a force
A) force B) work C) power D) friction E) magnetism |