A) gravitation B) work C) magnetism D) friction E) force
A) force B) friction C) gravitation D) magnetism E) work
A) friction B) force C) work D) gravitation E) magnetism
A) work B) force C) unbalanced forces D) magnetism E) balanced forces
A) work B) net force C) gravitation D) power E) force
A) friction B) work C) net force D) force E) power
A) power B) friction C) work D) balanced forces E) unbalanced forces
A) friction B) magnetism C) gravity D) newton
A) it continues in a straight line B) it is placed on a flat surface C) a nearby star acts on it D) an outside force acts on it
A) a force sending it backward B) a greater force pushing on it C) an equal and opposite reaction D) a movement in all directions
A) its momentum changes B) its frame of reference changes C) its mass and velocity changes D) Its position changes
A) Why all moving objects eventually stop moving B) how frame of reference influences movement C) The movement of objects on Earth and in space D) the relationship between the four basic elements
A) the ground pushes against your feet when you run B) friction can be overcome for all objects 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) inertia B) reaction force C) law of universal gravitation D) orbit
A) orbit B) Law of Gravitation C) inertia D) action force E) reaction force
A) action force B) inertia C) Reaction force D) orbit
A) speed B) position C) velocity D) acceleration E) momentum
A) acceleration of that object B) position of that object C) momentum of that object D) velocity of that object E) the speed of that object
A) momentum B) acceleration C) position D) velocity E) speed
A) momentum B) acceleration C) position D) velocity 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) trucks slow down when they are travelling uphill 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) friction B) a machine C) speed D) a magnet
A) a power B) a machine C) a current D) a force
A) magnetism B) power C) friction D) force E) work |