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