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