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