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