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