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