A) force B) friction C) magnetism D) gravitation E) work
A) magnetism B) force C) friction D) gravitation E) work
A) magnetism B) force C) work D) gravitation E) friction
A) balanced forces B) magnetism C) force D) unbalanced forces E) work
A) work B) net force C) power D) gravitation E) force
A) power B) work C) net force D) force E) friction
A) unbalanced forces B) friction C) balanced forces D) power E) work
A) magnetism B) friction C) newton 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) a force sending it backward B) a greater force pushing on it C) a movement in all directions D) an equal and opposite reaction
A) its frame of reference changes B) its mass and velocity 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) People in a car move forward in their seats when the car stops quickly C) friction can be overcome for all objects D) the ground pushes against your feet when you run
A) inertia B) orbit C) reaction force D) law of universal gravitation
A) reaction force B) Law of Gravitation C) inertia D) orbit E) action force
A) orbit B) action force C) inertia D) Reaction force
A) acceleration B) position C) velocity D) momentum E) speed
A) the speed of that object B) momentum of that object C) velocity of that object D) acceleration of that object E) position of that object
A) momentum B) acceleration C) speed D) position E) velocity
A) speed B) momentum C) velocity D) acceleration E) position
A) trucks slow down when they are travelling uphill 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) a spacecraft can travel in space for thousands of years
A) a lever and a wedge B) a pulley and a screw C) a wedge and a pulley D) A screw and a wedge
A) a machine B) speed C) a magnet D) friction
A) a force B) a current C) a power D) a machine
A) friction B) power C) magnetism D) force E) work |