A) work B) gravitation C) magnetism D) force E) friction
A) gravitation B) friction C) work D) force E) magnetism
A) magnetism B) friction C) force D) gravitation E) work
A) balanced forces B) unbalanced forces C) force D) magnetism E) work
A) gravitation B) force C) net force D) work E) power
A) net force B) power C) force D) friction E) work
A) unbalanced forces B) balanced forces C) work D) friction E) power
A) gravity B) friction C) magnetism D) newton
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) a greater force pushing on it C) a movement in all directions D) an equal and opposite reaction
A) its momentum changes B) its mass and velocity changes C) Its position changes D) its frame of reference 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) friction can be overcome for all objects B) People in a car move forward in their seats when the car stops quickly 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) orbit C) inertia D) reaction force
A) action force B) reaction force C) orbit D) inertia E) Law of Gravitation
A) Reaction force B) orbit C) action force D) inertia
A) acceleration B) position C) speed D) momentum E) velocity
A) the speed of that object B) position of that object C) acceleration of that object D) velocity of that object E) momentum of that object
A) momentum B) acceleration C) velocity D) position E) speed
A) velocity B) momentum C) position D) acceleration E) speed
A) a ball thrown into the air always falls back toward Earth B) a spacecraft can travel in space for thousands of years C) trucks slow down when they are travelling uphill D) a pole can be knocked down when a moving car hits it
A) A screw and a wedge B) a pulley and a screw C) a lever and a wedge D) a wedge and a pulley
A) a machine B) a magnet C) speed D) friction
A) a force B) a machine C) a current D) a power
A) power B) friction C) work D) magnetism E) force |