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