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