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