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