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