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